Specification

DIN 971 FINE THREAD HEX NUTS

DIN 971 Hex Nut, style 1 are in the group Nuts. Nuts, or mating fasteners, are available in hundreds of different shapes and sizes for any project or application. Varieties are normally hexagonal or square in shape, and have either coarse or fine internal threads that correspond to those of a mating bolt or screw.

DIN EN 971

Non-destructive examination of fusion welds - Visual examination; German version EN 971:1997

DIN971 NUTS

Unit:mm

Process flow

Cold forging

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

Hot forging

Cutting material ➨ hot forging ➨ turning ➨ tapping ➨ make heat treatment(if need) ➨ Finish ➨ Packing

Product Grade

Class 5 Class 6 Class 8 Class 10 Class 12

Materials and Chemical compstition

1008

1035

10B21

1045

40CR

35CRMO

42CRMO

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

MECHANICAL PROPERTY

TESTING STANDARD:DIN267- 4 OR ISO898-2

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

DIN 971 Hexagonal nuts use in conjunction with external threaded mating fasteners such as bolts, stud, screws, etc. Analogues. ISO 4032 modified. Benefits. DIN 971 nuts are hexagonal nut. This made from high strength standard material. Highly resist chemical and corrosion. It can use for light duty low-clearance application.

Analogues

• ISO 4032 modified.

Benefits

• DIN 971 nuts are hexagonal nut.
• This made from high strength standard material.
• Highly resist chemical and corrosion.
• It can use for light duty low-clearance application.
• Nut available with various plating that protect from rust.
• Due to Finishing or coating increase service life.
• Strong threads resist loosing due to vibrations.
• It can disassemble and reuse.
• Design of nut make it easy to tighten and loosen.

Operation

• The structure of DIN 971 nut is widely used for industrial as well as commercial use.
• DIN 971 hex nut easily and quickly assemble with wrencher.
• Metric coarse thread of nuts ensures thread engagement with mating fasteners do not allow loosening.