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Zongyou Fasteners
HIGH-STRENGTH FASTENERS

Products

Browse our full range of bolts, nuts, screws, washers and custom fasteners

Structural Bolts

High Strength Hex Bolt 10.9S

MaterialMedium Carbon Alloy Steel (40Cr
SizeM16 - M30 × 40~200mm
StandardGB/T 1228, GB/T 3632
Structural Bolts

Tension Control (TC) Bolt Assembly

Material20MnTiB
SizeM16 - M30
StandardGB/T 3632, ASTM F1852
Structural Bolts

Anchor Bolt Assembly

MaterialQ345B
SizeM24 - M64 × 500~3000mm
StandardGB/T 799, ASTM F1554
Structural Bolts

Heavy Hex Structural Bolt ASTM A325

MaterialMedium Carbon Steel
Size1/2" - 1-1/2" × 1-1/4" to 8"
StandardASTM A325, AISC
Nuts

Heavy Hex Nut Grade 10H

Material45# Steel
SizeM16 - M36
StandardGB/T 1229, ASTM A563
Nuts

Flange Nut DIN 6923

MaterialCarbon Steel
SizeM6 - M24
StandardDIN 6923, ISO 4161
Nuts

Nylon Insert Lock Nut DIN 985

MaterialCarbon Steel
SizeM3 - M30
StandardDIN 985, ISO 10511
Screws

Hex Head Self-Drilling Screw

MaterialC1022 Carbon Steel
Size#10 - #14 × 19~100mm
StandardGB/T 15856, DIN 7504
Screws

Socket Head Cap Screw DIN 912

MaterialAlloy Steel
SizeM3 - M36
StandardDIN 912, ISO 4762
Washers

Structural Flat Washer

Material45# Steel
SizeM16 - M30
StandardGB/T 1230, ASTM F436
Washers

Direct Tension Indicator (DTI) Washer

MaterialCarbon Steel
Size1/2" - 1-1/2" (M16 - M36)
StandardASTM F959
Threaded Rods & Studs

All-Thread Rod (Fully Threaded Rod)

MaterialQ235
SizeM10 - M48 × 1000~6000mm
StandardDIN 976, GB/T 901
Threaded Rods & Studs

Chemical Anchor Stud

MaterialCarbon Steel
SizeM10 - M30 × 130~400mm
StandardETA (European Technical Approval)
Wind Power Fasteners

Wind Tower Flange Bolt

Material42CrMo
SizeM36 - M64 × 120~500mm
StandardEN 14399, GB/T 1228
Wind Power Fasteners

Wind Turbine Foundation Bolt

Material40Cr
SizeM36 - M72 × 2000~5000mm
StandardCustomer specification
Steel Structure Parts

C/Z Type Steel Purlin

MaterialQ235B
SizeC80 - C300 / Z100 - Z300
StandardGB/T 11263
Steel Structure Parts

Diagonal Bracing (Corner Brace)

MaterialQ235B
SizeCustom per project
StandardGB 50017, GB/T 700