Made in China High Quality Hardware Hex Flat Head Screw DIN 7991

Made in China High Quality Hardware Hex Flat Head Screw DIN 7991, Find details about China Hardware, Hex Flat Screw from Made in China High Quality Hardware Hex Flat Head Screw DIN 7991

Basic Info.

Grade

8.8

Trademark

himore

Origin

China

HS Code

7318159000

Grade

8.8

Trademark

himore

Origin

China

HS Code

7318159000

Product Desciption

Thread Size	M0.8-M20	Length	2-200
Head Diameter	Custom/Standard	Head Height	Custom/Standard
Head Type	Flat	Drive Size	Phillips
Threading	Fully Threaded	Thread Type	Metric
Material	Steel	Finish	Zinc Plated
Core Hardness	HV220-HV380	Case Hardness	HV450-HV550
Specifications Met	DIN	Measurement	mm

Product Line	Material	SPEC	Finish	Grade	Salt spray test
Fastener Hardware	Stainless Steel Alloy steel Steel Brass Aluminum	M0.8 - M20 Length:2mm-200mm	Zinc Clear Black Zinc Green Zinc Zn-Ni Alloy Zn-Fe Alloy Nickel Tinning Black oxide	4.8 5.8 8.8 10.9 12.9 Customed	12H-600H

A screw is a type of fastener, in some ways similar to a bolt, typically made of metal, and characterized by a helical ridge, known as a male thread (external thread). Screws are used to fasten materials by digging in and wedging into a material when turned, while the thread cuts grooves in the fastened material that may help pull fastened materials together and prevent pull-out. There are many screws for a variety of materials; those commonly fastened by screws include wood, sheet metal, and plastic.