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

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Min Order 10 Pieces
Shipping From Zhejiang, China
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Hangzhou Union Hardware Co., Ltd

VIP   Audited Supplier 2 years
Profile Certified by SGS/BV
UNF-17
Carbon Steel
Hexagon Head
Cross
Common Bolt
Hexagonal
DIN, GB, ANSI, BSW, JIS, GOST
4.8, 5.8, 6.8, 8.8, 10.9, 12.9; A2-70,A4-70,A4-80
Sea Freight, Air, Train, Express
ISO9001:2015, BSCI
Yes
Accept
UN
Carton Boxes + Pallets
M3.5-M4.8
China
73181400
Product Description

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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
TypesCarbon contentANSIhardness LevelApplicationcharacter
low-carbon steel0.05-0.3%C10104.8Used for general screwsrelatively low tensile strength
C10184.8Used for Carburized screws or Thin screws with M4.0 diameter or less
C10225.8-
Medium-carbon steel0.3-0.6%C10458.8-good wear resistance
35ACR10.9Used for thin screws with M4.0 diameter or less
40ACR10.9Used for M4~M10 diameter screws
High-carbon steel0.6-1.0%- -extremely strong yet more brittle
high wear resistance
Ultra-high-carbon steel1.25-2.0%- -can be tempered to great hardness
Used for special purposes

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