JIS B 1111 Cross Recessed M2 M8 Machine Screw Mushroom Head

Place of Origin CHINA
Brand Name QBH
Certification ISO9001
Model Number M2-M8
Minimum Order Quantity 10000PCS
Price 0.1USD/PCS
Packaging Details 25kg Carton+900kg/Pallet or 5KG/CTN
Delivery Time 30days
Payment Terms L/C TT OA
Supply Ability 500TON/MONTH
Product Details
Standard JIS B 1111 Material Carbon Steel
Size M2-M8 Finish ZP BLACK YZP HDG
Grade 6 Packing BULK Or Small Packing
Process Cold Forging Sample Free Samples
Port Shanghai Or Ningbo Thread UNC And UNF
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Cross Recessed M8 Machine Screw

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JIS B 1111 M8 Machine Screw

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M8 Mushroom Head Screws

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Product Description

JIS B 1111 Cross Recessed Mushroom Head Screws Machine Screw

M2 M3 M4 M5 M6Machine Screws (jis b 1111andtruss) Machine Screws are uniformly threaded screws which are designed to be screwed into pre-drilled, pre-threaded holes, or in conjunction with a nut, usually with a diameter less than 1/4inch. Larger diameter machine screws with a hex head are usually referred to as machine bolts.

 

JIS B 1111 Cross Recessed M2 M8 Machine Screw Mushroom Head 0JIS B 1111 Cross Recessed M2 M8 Machine Screw Mushroom Head 1JIS B 1111 Cross Recessed M2 M8 Machine Screw Mushroom Head 2JIS B 1111 Cross Recessed M2 M8 Machine Screw Mushroom Head 3

 

 

     

 

Process flow

 

 

Cold forging

Annealing treatment(if need) ➨ wiredrawing ➨ clod forging ➨CNC➨ tapping ➨make heat treatment(if need)Finish Packing

 

 

JIS B 1111 Cross Recessed M2 M8 Machine Screw Mushroom Head 4

 

Nominal Diameter
d
M2 (M2.2) M2.5 M3 (M3.5) M4 (M4.5) M5 M6 M8
P Pitch
dk max
min
k Nominal Size
max
min
Socket No.
M
0.4 0.45 0.45 0.5 0.6 0.7 0.75 0.8 1 1.25
4.5 5 5.7 6.9 8.1 9.4 10.6 11.8 14 17.8
4.1 4.6 5.3 6.4 7.6 8.9 10 11.2 13.3 17
1.2 1.3 1.5 1.9 2.2 2.5 2.8 3.1 3.7 4.8
1.3 1.4 1.6 2.05 2.35 2.65 2.95 3.25 3.9 5
1.1 1.2 1.4 1.75 2.05 2.35 2.65 2.95 3.5 4.6
1 1 1 1 2 2 2 2 3 3
2.2 2.3 2.5 2.9 4 4.3 4.7 5 6.3 7.8

 

 

 

Materials and Chemical compstition

 

J995 Chemical Requirements      
Grade Carbon, % Phosphorus, % Manganese, % Sulfur, %
2 0.47 max 0.120 max - 0.15 max
5 0.55 max 0.050 max 0.30 min 0.15 max
8 0.55 max 0.040 max 0.30 min 0.05 max

 

 

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.

 

FAQ


1. How do you let me trust you.
 
Jiaxing City Qunbang Hardware Co.,ltd hs its own right of import and export,QBH trademark in China,United States,European Union have been registered.At the same time,you can also check the registration information of our company in the China industry and Commerce system.
 
 
2. How about your price.
 
We will be based on different markets,for different quality and quantity,tailor-made prices for customers,in order to achieve win-win goal.
 
 
3. How do you control your quality.
 
Incoming quality contral( IQC)→Process Quality control(PQC)→Output quality control(OQC),and the random samples is sent to TUV for testing.If the customer received the goods and found quality problems,QBH company promises to be responsible for returning money or replenishing the goods
 
 
4. Could you provide free samples?
 
For new customer, We can provide free samples for standard fastener, But the clients will pay the express
charges. For old customer, We will send you free samples and pay express charges by ourself.
 
 
5. Do you accept small order?
 
QBH company can accept small orders if we have them in stock.Generally speaking,the stock probability of stainless steel fasteners is higher than that of carbon steel fasteners.
 
 
6. How about your delivery time
 
What we pursure is the high efficiency movement pattern,the stainless steel fastener delivery time about 15days,the carbon steel fastener will it about 30days
 
 
7. What is your packing.
 
Usually 25KG/carbon,36CTNS on the pallets,or 20-30kg/Bags,then on the pallet,QBH company personalized packagingis also available,like 10PCS/plastic bag or 10pcs/box,it can print some information
such as LOGO and pattern of customers.
 
 
8. What is your payment term
 
Normally,our terms of payment are TT and L/C,if we cooperate for a long time,we can reach the point of mutual trust,and fully support our customers to become bigger and stronger in the local market.
Not only in the price concessions,but also in the payment can also be made on credit,Specific credit sales time needs to be negotiated separately