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SEMS Screws

Standard：DIN 6900 / ISO 10644/ GB/T 9074
Specification：M2.5 - M12
Material：Carbon Steel (1022A, 10B21), Stainless Steel (SS304/316)
Property Class：4.8, 8.8, 10.9
Finish：Zinc Plated (Clear/Blue/Yellow), Black Oxide, Geomet, Dacromet, Nickel Plated.
SEMS Screws / Screw and Washer Assemblies-Pre-assembled:Washers are trapped by the thread rolling process and cannot fall off.
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Hex Washer Head Self Drilling Screws

Standard：DIN 7504K / ISO 15480 / GB/T 15856.1
Specification：ST2.9 - ST6.3
Material：Case Hardened Steel / Stainless Steel (304/316) + Steel Tip (Bi-metal)
Property Class：Surface Hardness ≥ 560 HV ; Core Hardness 320-400 HV
Finish：Zinc Plated (Blue/White/Yellow), Ruspert, Dacromet, Magni
Hex drive with integrated washer (flange). Drill point #1 to #5 available.
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Pan Head Machine Screw

Standard：DIN 7985 / ISO 7045 / GB/T 818 / ASME B18.6.7M
Specification：M1.6 - M10
Material：Carbon Steel, Stainless Steel (A2/A4)
Property Class：4.8, 5.8, 8.8
Finish：Zinc Plated, Black Oxide, Nickel Plated, Plain
Phillips drive (H-type) or Pozidriv (Z-type).
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Hex Head Bolts Full Thread

Standard：DIN 933 / ISO 4017 / GB 5783 / ASME B18.2.1
Specification：M3 - M64(Metric) / 1/4" - 2" (Inch)
Material：Carbon Steel / Alloy Steel / Stainless Steel (SS304/SS316)
Property Class：4.8 / 5.8 / 8.8 / 10.9 / 12.9
Finish：Plain, Black Oxide, Zinc Plated (Cr3+), Hot Dip Galvanized, Dacromet
Metric Coarse, Fine Thread Available.
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Mushroom Head Square Neck Bolt (Carriage Bolt)

Standard：DIN 603 / ISO 8677 / GB/T 14 / ASME B18.5
Specification：M3 - M24
Material：Carbon Steel / Stainless Steel
Property Class：4.8 / 5.8 / 8.8
Finish：Hot Dip Galvanized
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Hex Nuts

Standard：DIN 934 / ISO 4032 / GB/T 6170 / ASME B18.2.2
Specification：M3 - M64
Material：Carbon Steel / Alloy Steel / Stainless Steel (SS304/SS316)
Property Class：4 / 6 / 8 / 10 / 12
Finish：Zinc, HDG, Dacromet, Plain, Black Oxide
Metric Coarse and Fine Thread Available. High-strength matching for bolts.
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Nylon Insert Self locking Nut

Standard：DIN 985/ ISO 10511 / UNI 7474
Specification：M3 - M48
Material：Carbon Steel / Stainless Steel(SS304/SS316)
Property Class：6, 8, 10
Finish：Zinc Plated (Blue/White/Yellow)
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Hex Flange Nut

Standard：DIN 6923 / ISO 4161 / EN 1661
Specification：M5 - M30
Material：Carbon Steel / Alloy Steel / Stainless Steel (SS304/SS316)
Property Class：8 / 10 / 12
Finish：Plain, Black Oxide, Zinc Plated (Cr3+), Hot Dip Galvanized, Dacromet
Available with smooth or serrated bearing surface.
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Plain Washers

Standard：DIN 125A / ISO 7089 / GB/T 97.1 / ASME B18.22.1
Specification：M1.6 - M160
Material：Carbon Steel / Stainless Steel (A2/A4) / Brass
Property Class：Hardness 140/200/300HV
Finish：Plain, Zinc, HDG, Dacromet
Form A: Without chamfer
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Spring Lock Washers

Standard：DIN 127B / GB/T 93 / ASME B18.21.1
Specification：M2 - M100
Material：Spring Steel(65Mn), Stainless Steel (A2/A4)
Property Class：Hardness:420 - 510 HV (Carbon Steel); HV ≥ 200 (Stainless Steel)140 HV / 200 HV / 300 H
Finish：Plain, Zinc Plated, Hot Dip Galvanized, Mechanical Galv
Form B: Square ends
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Large Plain Washers

Standard：DIN 9021 / ISO 7093 / GB/T 96 / ASME B18.22.1 (Type A Wide)
Specification：M3 - M36
Material：Carbon Steel / Stainless Steel (A2/A4) / Brass
Property Class：100HV, 140HV, 200HV, 300HV
Finish：Plain, Zinc Plated, Hot Dip Galvanized, Dacromet, Black Oxide
Outside diameter≈3 × nominal thread diameter.
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Open End Blind Rivets

Standard：DIN 7337 / ISO 15977 / GB/T 12618 / ASME B18.7
Specification：2.4mm, 3.0mm, 3.2mm, 4.0mm, 4.8mm, 5.0mm, 6.4mm
Material：Aluminum/Steel, Steel/Steel, St.St/St.St, Aluminum/St.St
Property Class：140 HV / 200 HV / 300 HV
Finish：Zinc Plated, Polished, Color Painted
Head Style：Dome Head, Countersunk, Large Flange