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DIN 931 half thread Hexagon head hex bolts with shank class4.8 class 8.8 class 10.9 ZP YZP BLACK HDG color

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DIN 931 half thread Hexagon head hex bolts with shank class4.8 class 8.8 class 10.9 ZP YZP BLACK HDG color

Name: DIN 931 half thread Hexagon head hex bolts with shank class4.8 class 8.8 class 10.9 ZP YZP BLACK HDG color
Brand: QBH
SKU: M5-M68 each length
Price: 1.00 USD
Availability: InStock
Rating: 4.6 (122 reviews)

MOQ:	900KG
Price:	Negotiation
Standard Packaging:	25KG/CTN,36CTN/PALLET or small packing
Delivery Period:	30DAYS
Payment Method:	L/C, T/T
Supply Capacity:	500TON/MONTH

Detail Information

Product Description

Detail Information

Place of Origin

CHINA

Brand Name

QBH

Certification

ISO9001

Model Number

M5-M68 each length

STANDARD:

DIN931

Material:

Carbon Steel

Finish:

ZP YZP HDG BLACK

Size:

M5-M68 Each Length

Sample:

Sample Is Free

Lead Time:

Per On Order Quantity

Type:

Hexagon Head

Advantage:

We Can Manufacture According To Client Design,OEM / ODM / Customized Service Provided

Oem:

Yes,welcome

Minimum Order Quantity:

900KG

Price:

Negotiation

Packaging Details:

25KG/CTN,36CTN/PALLET or small packing

Delivery Time:

30DAYS

Payment Terms:

L/C, T/T

Supply Ability:

500TON/MONTH

Product Description

Specification

DIN 931 - Hexagon head bolts with shank

Current norm: DIN EN ISO 4014
Equivalent norms: ISO 4014; CSN 021101; PN 82101; UNI 5737; EU 24014

DIN 931 half thread Hexagon head hex bolts with shank class4.8 class 8.8 class 10.9 ZP YZP BLACK HDG color 0

Legend:

l - length of bolt

Makings:QBH

Steel: 5.6,5.8,8.8,10.9,12.9
Stainless: A2,A4
Plastic: -
Non Ferrous: Brass
Thread: 6g

DIN 931

Sizes and characteristics of hexagon head bolts partially threaded DIN 931
D		M3	M4	M5	M6	M8	M10	M12	M14	M16	M18
P		0,5	0,7	0,8	1	1,25	1,5	1,75	2	2	2,5
K		2	2,8	3,5	4	5,3	6,4	7,5	8,8	10	11,5
C	min.	0,15	0,15	0,15	0,15	0,15	0,15	0,15	0,15	0,2	0,2
C	max.	0,4	0,4	0,5	0,5	0,6	0,6	0,6	0,6	0,8	0,8
R		0,1	0,2	0,2	0,25	0,4	0,4	0,6	0,6	0,6	0,6
S	DIN 931	5,5	7	8	10	13	17	19	22	24	27
S	ISO 4014	5,5	7	8	10	13	16	18	21	24	27
e	DIN 931	6,01	7,66	8,79	11,05	14,38	18,9	21,1	24,49	26,75	30,14
e	ISO 4014	6,01	7,66	8,79	11,05	14,38	17,77	20,03	23,36	26,75	30,14
B (L≤125)		12	14	16	18	22	26	30	34	38	42
B (125<L≤200)		18	20	22	24	28	32	36	40	44	48
B (L>200)		-	-	-	-	-	45	49	53	57	61

D		M20	M22	M24	M27	M30	M36	M42	M48	M56	M64
P		2,5	2,5	3	3	3,5	4	4,5	5	5,5	6
K		12.5	14	15	17	18.7	22.5	26	30	35	40
C	min.	0,2	0,2	0,2	0,2	0,2	0,2	0,3	0,3	0,3	0,3
C	max.	0,8	0,8	0,8	0,8	0,8	0,8	1	1	1	1
R		0,8	0,8	0,8	1	1	1	1,2	1,6	2	2
S	DIN 931	30	32	36	41	46	55	65	75	85	95
S	ISO 4014	30	34	36	41	46	55	65	75	85	95
e	DIN 931	33,53	38,85	39,98	45,2	50,85	60,79	71,3	82,6	93,56	104,9
e	ISO 4014	33,53	37,72	39,98	45,2	50,85	60,79	71,3	82,6	93,56	104,9
B (L≤125)		46	50	54	60	66	-	-	-	-	-
B (125<L≤200)		52	56	60	66	72	84	96	108	-	-
B (L>200)		65	69	73	79	85	97	109	121	137	153

Process flow

Cold forging

Annealing treatment(if need) ➨ wiredrawing ➨ clod forging ➨ thread rolling ➨make heat treatment(if need) ➨ Finish ➨ Packing

Hot forging

Cutting material ➨ hot forging ➨ turning ➨ shrink diameter(half thread) ➨thread rolling ➨ make heat treatment(if need) ➨ Finish ➨ Packing

Product Grade

Class4.8 Class5.8 Class6.8 Class8.8 Class10.9 Class12.9

NO.	Mechanical or physical property		Property class
			4.6	4.8	5.6	5.8	6.8	8.8		9.8	10.9	12.9/12.9
			4.6	4.8	5.6	5.8	6.8	D≤16mm^a	d＞16mm^b	d≤16mm	10.9	12.9/12.9
1	Tensile strength R_m,Mpa	nom.^c	400		500		600	800		900	1000	1200
1	Tensile strength R_m,Mpa	max.	400	420	500	520	600	800	830	900	1040	1220
2	Lower yield strength R_eL,Mpa	nom.^c	240	——	300	——	——	——	——	——	——	——
2	Lower yield strength R_eL,Mpa	max.	240	——	300	——	——	——	——	——	——	——
3	Stress at 0,2 % nonproportional elongation R_p0.2,Mpa	nom.^c	——	——	——	——	——	640	640	720	900	1080
3	Stress at 0,2 % nonproportional elongation R_p0.2,Mpa	max.	——	——	——	——	——	640	660	720	940	1100
4	Stress at 0,0048 d non-proportional elongation for full-size fasteners R_p^f,Mpa	nom.^c	——	320	——	400	480	——	——	——	——	——
4		max.	——	340^e	——	420^e	480^e	——	——	——	——	——
5	Stress under proof load S_p^f,Mpa	nom.	225	310	280	380	440	580	600	650	830	970
5	Proof S_p,nom/R_{eL min} Or strength S_p,nom/R_p0.2min Or rati S_p,nom/R_{pf min}		0.94	0.91	0.93	0.9	0.92	0.91	0.91	0.9	0.88	0.88
6	Percentage elongation after fracture for machined test pieces,A,%	min.	22	-—	20	——	——	12	12	10	9	8
7	Percentage reduction of area after fracture for machined test pieces,Z,%	min.	——					52		48	48	44
8	Elongation after fracture for full-size fasteners,A_f	min.	——	0.24	——	0.22	0.2	——	——	——	——	——
9	Head soundness		No fracture
10	Vickers hardness, HV, F≥98N	min.	120	130	155	160	190	250	255	290	320	385
10	Vickers hardness, HV, F≥98N	max.	220^g				250	320	335	360	380	435
11	Brinell hardness, HBW ,F=30D²	min.	114	124	147	152	181	238	242	276	304	366
11	Brinell hardness, HBW ,F=30D²	max.	209^g				238	304	318	342	361	414
12	Rockwell hardness,HRB , HRB	min.	67	71	79	82	89
	Rockwell hardness,HRB , HRB	max.	95^g				99.5
	Rockwell hardness, HRC	min.	——					22	23	28	32	39
	Rockwell hardness, HRC	max.	——					32	34	37	39	44
13	Surface hardness HV 0.3	max.	——					h			h,j	h,j
14	Height of non-decarburized thread zone,E,mm	min.	——					1/2H₁			2/3H₁	3/4H₁
14	Depth of complete decarburization in the thread,G,mm	max.	——					0.015
15	Reduction of hardness after retempering,HV	max.	——					20
16	Breaking torque, M_B,N·m	min.	——					in accordance with ISO 898-7
17	Impact strength, K_V^K,I,J	min.	——		27	——		27	27	27	27	m
18	Surface integrity in accordance with		ISO 6157-1ⁿ									ISO 6157-3
a Values do not apply for structural bolting. b For structural bolting d W M12. c Nominal values are specified only for the purpose of the designation system for property classes. See Clause 5. d In cases where the lower yield strength ReL cannot be determined, it is permissible to measure the stress at 0,2 % non-proportional elongation Rp0,2. e For the property classes 4.8, 5.8 and 6.8 the values for Rpf min are under investigation. The present values are given for calculation of the proof stress ratio only. They are not test values. f Proof loads are specified in Tables 5 and 7. g Hardness determined at the end of a fastener shall be 250 HV, 238 HB or 99,5 HRB maximum. h Surface hardness shall not be more than 30 Vickers points above the measured core hardness of the fastener when determination of both surface hardness and core hardness are carried out with HV 0,3. i Any increase in hardness at the surface which indicates that the surface hardness exceeds 390 HV is not acceptable. j Any increase in hardness at the surface which indicates that the surface hardness exceeds 435 HV is not acceptable. k Values are determined at a test temperature of −20 °C, see 9.14. l Applies to d W 16 mm. m Value for KV is under investigation. n Instead of ISO 6157-1, ISO 6157-3 may apply by agreement between the manufacturer and the purchaser.

Materials and Chemical compstition

1008

CHEMICAL COMPOSI %
C	Si	Mn	P	S	Cr	Ni	Cu	Al
0.06	0.06	0.33	0.013	0.003	0.01	0	0.01	0.028

1035

CHEMICAL COMPOSI %
C	Si	Mn	P	S	Cr	Ni	Cu
0.34	0.13	0.73	0.012	0.002	0.02	0.01	0.02

10B21

CHEMICAL COMPOSI %
C	Si	Mn	P	S	Cr	B
0.2	0.04	0.81	0.017	0.007	0.017	0.0021

1045

CHEMICAL COMPOSI %
C	Si	Mn	P	S	Cr	Ni	Cu
0.45	0.23	0.58	0.014	0.006	0.057	0.008	0.016

40CR

CHEMICAL COMPOSI %
C	Si	Mn	P	S	Cr	Ni	Cu
0.4	0.21	0.54	0.015	0.008	0.95	0.02	0.02

35CRMO

CHEMICAL COMPOSI %
C	Si	Mn	P	S	Cr	Ni	Cu	Mo
0.35	0.22	0.59	0.01	0.003	0.93	0.01	0.01	0.21

42CRMO

CHEMICAL COMPOSI %
C	Si	Mn	P	S	Cr	Ni	Cu	Mo
0.42	0.27	0.92	0.013	0.004	1.01	0.03	0.04	0.2

Finish

PLAIN ZP YZP BLACK HDG DACROMET GEOMET CHROME NICKEL AND SO ON

PACKING

QBH BULK

20-25KG/CTN,36CTNS/PALLET

20-30KG/BAGS,36BAGS/PALLET

ONE TON/BOXES

50KG/ IRON DRUM,12 IRON DRUMS/PALLET

QBH SMALL PACKING

Packing in small boxes according to customer’s requirements

Packing in plastic bag according to customer’s requirements

QBH PALLET TYPE

SOLID WOOD FUMIGATION PALLET

EURO Pallet

THREE SPLINT PALLET

WOODEN BOX

The advantages of QBH

QBH brand sales to the main quality assurance.
Years of export trade management, excellent service, word-of-mouth guarantee.
By working with TUV,escort for quality.
Customization of non-standard parts can be made according to customer's requirements and drawings.
For quality customers,we can provide a certain credit period.

Product application

Hexagon Bolts are created to DIN 931, and are a partially threaded fastener with a hexagon-shaped head that is usually fixed with a spanner or socket tool.

Hosting a machine thread, these bolts are suitable for use with either a nut or within a pre-tapped hole.

Materials can include various grades of steel, including Grade 5 (5.6), Grade 8 (8.8), Grade 10 (10.9) and Grade 12 (12.9) with zinc plating, zinc and yellow, galvanising or self colour. They are also available in A2 and A4 stainless steel, with other materials available to order.

As standard, they are available in sizes from M3 to M64, with non-standard sizes and threads – such as UNC, UNF, BSW and BSF – all possible to order.

Please contact us with your requirements to further your enquiry.

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PRODUCTS DETAILS

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Stainless Steel Washer

Fully Threaded Studs

Non Standard Fasteners

Seismic Wedge Anchors

Self Tapping Screw

Electrical Fasteners

Solar Panel Fasteners

Stainless Steel Shackle

DIN 931 half thread Hexagon head hex bolts with shank class4.8 class 8.8 class 10.9 ZP YZP BLACK HDG color

MOQ:	900KG
Price:	Negotiation
Standard Packaging:	25KG/CTN,36CTN/PALLET or small packing
Delivery Period:	30DAYS
Payment Method:	L/C, T/T
Supply Capacity:	500TON/MONTH

Detail Information

Product Description

Detail Information

Place of Origin

CHINA

Brand Name

QBH

Certification

ISO9001

Model Number

M5-M68 each length

STANDARD:

DIN931

Material:

Carbon Steel

Finish:

ZP YZP HDG BLACK

Size:

M5-M68 Each Length

Sample:

Sample Is Free

Lead Time:

Per On Order Quantity

Type:

Hexagon Head

Advantage:

We Can Manufacture According To Client Design,OEM / ODM / Customized Service Provided

Oem:

Yes,welcome

Minimum Order Quantity:

900KG

Price:

Negotiation

Packaging Details:

25KG/CTN,36CTN/PALLET or small packing

Delivery Time:

30DAYS

Payment Terms:

L/C, T/T

Supply Ability:

500TON/MONTH

Product Description

Specification

DIN 931 - Hexagon head bolts with shank

Current norm: DIN EN ISO 4014
Equivalent norms: ISO 4014; CSN 021101; PN 82101; UNI 5737; EU 24014

DIN 931 half thread Hexagon head hex bolts with shank class4.8 class 8.8 class 10.9 ZP YZP BLACK HDG color 0

Legend:

l - length of bolt

Makings:QBH

Steel: 5.6,5.8,8.8,10.9,12.9
Stainless: A2,A4
Plastic: -
Non Ferrous: Brass
Thread: 6g

DIN 931

Sizes and characteristics of hexagon head bolts partially threaded DIN 931
D		M3	M4	M5	M6	M8	M10	M12	M14	M16	M18
P		0,5	0,7	0,8	1	1,25	1,5	1,75	2	2	2,5
K		2	2,8	3,5	4	5,3	6,4	7,5	8,8	10	11,5
C	min.	0,15	0,15	0,15	0,15	0,15	0,15	0,15	0,15	0,2	0,2
C	max.	0,4	0,4	0,5	0,5	0,6	0,6	0,6	0,6	0,8	0,8
R		0,1	0,2	0,2	0,25	0,4	0,4	0,6	0,6	0,6	0,6
S	DIN 931	5,5	7	8	10	13	17	19	22	24	27
S	ISO 4014	5,5	7	8	10	13	16	18	21	24	27
e	DIN 931	6,01	7,66	8,79	11,05	14,38	18,9	21,1	24,49	26,75	30,14
e	ISO 4014	6,01	7,66	8,79	11,05	14,38	17,77	20,03	23,36	26,75	30,14
B (L≤125)		12	14	16	18	22	26	30	34	38	42
B (125<L≤200)		18	20	22	24	28	32	36	40	44	48
B (L>200)		-	-	-	-	-	45	49	53	57	61

D		M20	M22	M24	M27	M30	M36	M42	M48	M56	M64
P		2,5	2,5	3	3	3,5	4	4,5	5	5,5	6
K		12.5	14	15	17	18.7	22.5	26	30	35	40
C	min.	0,2	0,2	0,2	0,2	0,2	0,2	0,3	0,3	0,3	0,3
C	max.	0,8	0,8	0,8	0,8	0,8	0,8	1	1	1	1
R		0,8	0,8	0,8	1	1	1	1,2	1,6	2	2
S	DIN 931	30	32	36	41	46	55	65	75	85	95
S	ISO 4014	30	34	36	41	46	55	65	75	85	95
e	DIN 931	33,53	38,85	39,98	45,2	50,85	60,79	71,3	82,6	93,56	104,9
e	ISO 4014	33,53	37,72	39,98	45,2	50,85	60,79	71,3	82,6	93,56	104,9
B (L≤125)		46	50	54	60	66	-	-	-	-	-
B (125<L≤200)		52	56	60	66	72	84	96	108	-	-
B (L>200)		65	69	73	79	85	97	109	121	137	153

Process flow

Cold forging

Annealing treatment(if need) ➨ wiredrawing ➨ clod forging ➨ thread rolling ➨make heat treatment(if need) ➨ Finish ➨ Packing

Hot forging

Cutting material ➨ hot forging ➨ turning ➨ shrink diameter(half thread) ➨thread rolling ➨ make heat treatment(if need) ➨ Finish ➨ Packing

Product Grade

Class4.8 Class5.8 Class6.8 Class8.8 Class10.9 Class12.9

NO.	Mechanical or physical property		Property class
			4.6	4.8	5.6	5.8	6.8	8.8		9.8	10.9	12.9/12.9
			4.6	4.8	5.6	5.8	6.8	D≤16mm^a	d＞16mm^b	d≤16mm	10.9	12.9/12.9
1	Tensile strength R_m,Mpa	nom.^c	400		500		600	800		900	1000	1200
1	Tensile strength R_m,Mpa	max.	400	420	500	520	600	800	830	900	1040	1220
2	Lower yield strength R_eL,Mpa	nom.^c	240	——	300	——	——	——	——	——	——	——
2	Lower yield strength R_eL,Mpa	max.	240	——	300	——	——	——	——	——	——	——
3	Stress at 0,2 % nonproportional elongation R_p0.2,Mpa	nom.^c	——	——	——	——	——	640	640	720	900	1080
3	Stress at 0,2 % nonproportional elongation R_p0.2,Mpa	max.	——	——	——	——	——	640	660	720	940	1100
4	Stress at 0,0048 d non-proportional elongation for full-size fasteners R_p^f,Mpa	nom.^c	——	320	——	400	480	——	——	——	——	——
4		max.	——	340^e	——	420^e	480^e	——	——	——	——	——
5	Stress under proof load S_p^f,Mpa	nom.	225	310	280	380	440	580	600	650	830	970
5	Proof S_p,nom/R_{eL min} Or strength S_p,nom/R_p0.2min Or rati S_p,nom/R_{pf min}		0.94	0.91	0.93	0.9	0.92	0.91	0.91	0.9	0.88	0.88
6	Percentage elongation after fracture for machined test pieces,A,%	min.	22	-—	20	——	——	12	12	10	9	8
7	Percentage reduction of area after fracture for machined test pieces,Z,%	min.	——					52		48	48	44
8	Elongation after fracture for full-size fasteners,A_f	min.	——	0.24	——	0.22	0.2	——	——	——	——	——
9	Head soundness		No fracture
10	Vickers hardness, HV, F≥98N	min.	120	130	155	160	190	250	255	290	320	385
10	Vickers hardness, HV, F≥98N	max.	220^g				250	320	335	360	380	435
11	Brinell hardness, HBW ,F=30D²	min.	114	124	147	152	181	238	242	276	304	366
11	Brinell hardness, HBW ,F=30D²	max.	209^g				238	304	318	342	361	414
12	Rockwell hardness,HRB , HRB	min.	67	71	79	82	89
	Rockwell hardness,HRB , HRB	max.	95^g				99.5
	Rockwell hardness, HRC	min.	——					22	23	28	32	39
	Rockwell hardness, HRC	max.	——					32	34	37	39	44
13	Surface hardness HV 0.3	max.	——					h			h,j	h,j
14	Height of non-decarburized thread zone,E,mm	min.	——					1/2H₁			2/3H₁	3/4H₁
14	Depth of complete decarburization in the thread,G,mm	max.	——					0.015
15	Reduction of hardness after retempering,HV	max.	——					20
16	Breaking torque, M_B,N·m	min.	——					in accordance with ISO 898-7
17	Impact strength, K_V^K,I,J	min.	——		27	——		27	27	27	27	m
18	Surface integrity in accordance with		ISO 6157-1ⁿ									ISO 6157-3
a Values do not apply for structural bolting. b For structural bolting d W M12. c Nominal values are specified only for the purpose of the designation system for property classes. See Clause 5. d In cases where the lower yield strength ReL cannot be determined, it is permissible to measure the stress at 0,2 % non-proportional elongation Rp0,2. e For the property classes 4.8, 5.8 and 6.8 the values for Rpf min are under investigation. The present values are given for calculation of the proof stress ratio only. They are not test values. f Proof loads are specified in Tables 5 and 7. g Hardness determined at the end of a fastener shall be 250 HV, 238 HB or 99,5 HRB maximum. h Surface hardness shall not be more than 30 Vickers points above the measured core hardness of the fastener when determination of both surface hardness and core hardness are carried out with HV 0,3. i Any increase in hardness at the surface which indicates that the surface hardness exceeds 390 HV is not acceptable. j Any increase in hardness at the surface which indicates that the surface hardness exceeds 435 HV is not acceptable. k Values are determined at a test temperature of −20 °C, see 9.14. l Applies to d W 16 mm. m Value for KV is under investigation. n Instead of ISO 6157-1, ISO 6157-3 may apply by agreement between the manufacturer and the purchaser.

Materials and Chemical compstition

1008

CHEMICAL COMPOSI %
C	Si	Mn	P	S	Cr	Ni	Cu	Al
0.06	0.06	0.33	0.013	0.003	0.01	0	0.01	0.028

1035

CHEMICAL COMPOSI %
C	Si	Mn	P	S	Cr	Ni	Cu
0.34	0.13	0.73	0.012	0.002	0.02	0.01	0.02

10B21

CHEMICAL COMPOSI %
C	Si	Mn	P	S	Cr	B
0.2	0.04	0.81	0.017	0.007	0.017	0.0021

1045

CHEMICAL COMPOSI %
C	Si	Mn	P	S	Cr	Ni	Cu
0.45	0.23	0.58	0.014	0.006	0.057	0.008	0.016

40CR

CHEMICAL COMPOSI %
C	Si	Mn	P	S	Cr	Ni	Cu
0.4	0.21	0.54	0.015	0.008	0.95	0.02	0.02

35CRMO

CHEMICAL COMPOSI %
C	Si	Mn	P	S	Cr	Ni	Cu	Mo
0.35	0.22	0.59	0.01	0.003	0.93	0.01	0.01	0.21

42CRMO

CHEMICAL COMPOSI %
C	Si	Mn	P	S	Cr	Ni	Cu	Mo
0.42	0.27	0.92	0.013	0.004	1.01	0.03	0.04	0.2

Finish

PLAIN ZP YZP BLACK HDG DACROMET GEOMET CHROME NICKEL AND SO ON

PACKING

QBH BULK

20-25KG/CTN,36CTNS/PALLET

20-30KG/BAGS,36BAGS/PALLET

ONE TON/BOXES

50KG/ IRON DRUM,12 IRON DRUMS/PALLET

QBH SMALL PACKING

Packing in small boxes according to customer’s requirements

Packing in plastic bag according to customer’s requirements

QBH PALLET TYPE

SOLID WOOD FUMIGATION PALLET

EURO Pallet

THREE SPLINT PALLET

WOODEN BOX

The advantages of QBH

QBH brand sales to the main quality assurance.
Years of export trade management, excellent service, word-of-mouth guarantee.
By working with TUV,escort for quality.
Customization of non-standard parts can be made according to customer's requirements and drawings.
For quality customers,we can provide a certain credit period.

Product application

Hexagon Bolts are created to DIN 931, and are a partially threaded fastener with a hexagon-shaped head that is usually fixed with a spanner or socket tool.

Hosting a machine thread, these bolts are suitable for use with either a nut or within a pre-tapped hole.

As standard, they are available in sizes from M3 to M64, with non-standard sizes and threads – such as UNC, UNF, BSW and BSF – all possible to order.

Please contact us with your requirements to further your enquiry.

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