Din6921 Grade 10.9

GRADE-10.9 HEX FLANGE BOLTS

Description

A one-piece hex washer head bolts with a flat bearing surface,made of medium carbon steel or high-alloy steel

Applications/Advantages

Primary use for class 10.9 bolts is on truck cassis frames.The flange eliminates the need for a flat washer and helps compensate for a misaligned hole.When used with a proper class flange nuts,the bolts system resists bolts slippage by distributing the clamp load over a wide area

Tempering Temperature

425°C minimum.

Material

Class 10.9 chemical composition:Carbon-0.20 - 0.55%;Phosphorous-0.35% max;Sulphur-0.35% max

Core Hardness

Rockwell C32 - C39.

Proof Stress

940N/mm2 minimum

Tensile Strength

1040N/mm2 minimum

Elongation after Fracture

9mm

Plating

Zinc,HDG,Plain,Dacrotized,Teflon,Colorful Dye