Our Advantages Product DescriptionUnion Carbon Steel
Concrete ScrewsNameConcrete ScrewsMaterialCarbon SteelSizeM5-M20 or
non-standard as request&designLength30mm-250mm or non-standard
as request&designSurface TreatmentBlack, Plain, Blue, Clear,
Yellow, HDG Zinc, CustomizedQualitySample Testing or Third-party
InspectionOriginMade in ChinaLead
TimeBased on quantity Main Fastener
Coating TypesApplicationSpray Test HoursCharacteristicsZinc,
ElectroplatedAll Metal96HoursLower cost and bright surfaceHot Dip
GalvanizedAll Metal96HoursLow corrosion rate and resists mechanical
damage.Electro NickelAll Metal200HoursFlexibility in plating volume
and thicknessMechanical PlatingSteel1000HoursSmooth finish with
high anti-corrosion gradeBlack OxideAll
Metal3-5HoursCheapDacrotizedSteel1000HoursPollution-free ceramic
coatingPassivationStainless Steel/Dissolved iron
contaminantsWaxStainless Steel & Plated FastenersFair, used as a
lubricateUsed for ease of assemblyCarbon steel screwsCarbon steel
is a versatile material used for making a 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
the 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.With the proper screw selection for the
materials and conditions at hand, carbon steel screws provide an
indispensable, cost-effective fastening solution. Carbon Steel
Technical DetailsTypesCarbon contentANSIhardness
LevelApplicationcharacterlow-carbon steel0.05-0.3%C10104.8Used for
general screwsrelatively low tensile strengthC10184.8Used for
Carburized screws or Thin screws with M4.0 diameter or
lessC10225.8-Medium-carbon steel0.3-0.6%C10458.8-good wear
resistance35ACR10.9Used for thin screws with M4.0 diameter or
less40ACR10.9Used for M4~M10 diameter screwsHigh-carbon
steel0.6-1.0%- -extremely strong yet more brittlehigh wear
resistanceUltra-high-carbon steel1.25-2.0%- -can be tempered
to great hardnessUsed for special purposesProduct
ApplicationCompany ProfileQuality
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