13mm to 100mm Length Hexagonal Head Self Drilling Self Tapping Good Wear Resistant Ruspert Dacromet Carbon Steel Screws with EPDM Washer Underhead

Product Description

Our Advantages
Product Description

Union Carbon Steel Corrosion Resistant Screws

Name

Corrosion Resistant Screws Dacromet

Material

Carbon Steel

Size

M3.5-M4.8 or non-standard as request&design

Length

13mm-100mm or non-standard as request&design

Surface Treatment

Dacromet

Quality

Sample Testing Or Third-party Inspection

Origin

Made In China

Lead Time

Based on quantity

Carbon steel screws
Carbon steel is a versatile material used for making the wide array of screws that serve as vital fasteners in countless applications. Different screw types have evolved for specific uses, taking advantage of carbon steel's strength, machinability and low cost. Common carbon steel screw varieties include self-tapping, self-drilling, T17 timber, and resistant head.
Self-tapping screws have threads that cut into material as they are driven in, creating internal threads for securing into materials like plastics, sheet metal or wood.
Self-drilling screws combine drilling and tapping into one operation, fully eliminating any pilot hole requirement. Self-drilling screws provide fast assembly of overlapped metal sheets or other materials up to moderate thicknesses.
T17 screws are designed specifically for fastening into wood materials. They have a thinner shank and tapered shape for reducing wood splitting while providing holding power. T17s are commonly used in woodworking and construction projects.
Resistant screws have special head treatments to withstand specific exposure conditions. A range of coatings and surface treatments have been developed to make carbon steel screws rust-resistant for use in outdoor, marine and other demanding settings.

Carbon Steel Technical Details
Types	Carbon content	ANSI	hardness Level	Application	character
low-carbon steel	0.05-0.3%	C1010	4.8	Used for general screws	relatively low tensile strength
		C1018	4.8	Used for Carburized screws or Thin screws with M4.0 diameter or less
		C1022	5.8	-
Medium-carbon steel	0.3-0.6%	C1045	8.8	-	good wear resistance
		35ACR	10.9	Used for thin screws with M4.0 diameter or less
		40ACR	10.9	Used for M4~M10 diameter screws
High-carbon steel	0.6-1.0%	-		-	extremely strong yet more brittle high wear resistance
Ultra-high-carbon steel	1.25-2.0%	-		-	can be tempered to great hardness Used for special purposes

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