DIN 7991 Flat/Countersunk Hex Socket Head Cap Screws Bolts

Size：M4-M36
Length: 1/4”-3/8”，10mm-50mm

10.9 Grade alloy steel with corrosion resistant black oxide finish to ensure life-time use, these quality assortment screws for home, automotive, and shop use. They have excellent corrosion resistance, firmness, wear resistance and low temperature resistance..

PRODUCT DETAILS:

Screw assortment Kit Serves a wide range of use and for professionals, amateurs, landlords, repairmen, other DIY . The set is perfect to replace broken and missing screws.

Flat head cap screws have a 90 degree angle underneath the head. When installed, the head of this screw is meant to sit flush with the surface of the work in a countersunk hole.

A black oxide finish provides minimal corrosion resistance, best for indoor, dry environments. This finish is not suitable for outdoor applications, and will rust when exposed to moisture.

Class 10.9 metric flat head bolts are considered hardened, providing a high strength, high tensile fastening solution. Pair with Class 10 or stronger nuts. These bolts can be used with many different styles of locking and non-locking nuts, tightly clamping together whatever the cap screw is being used to secure.

Also known as a countersunk allen head machine screw, hex drive flat head countersunk socket cap bolt.