► Socket Screws

Socket Screws – Fasteners for Precision Assembly & High-Torque Applications Socket screws, also known as Allen screws or hex socket screws, are designed for high-strength, precision fastening in machinery, fabrication, & equipment assembly. With internal hex drives, they enable tight installation in confined spaces & deliver superior torque transfer. Available...

Socket Screws – Fasteners for Precision Assembly & High-Torque Applications

Socket screws, also known as Allen screws or hex socket screws, are designed for high-strength, precision fastening in machinery, fabrication, & equipment assembly. With internal hex drives, they enable tight installation in confined spaces & deliver superior torque transfer. Available in cap head, button head, & countersunk varieties, our socket screws are ideal for mechanical repairs, tooling setups, & metalwork builds.

What’s in This Collection:
► Socket cap screws for strong mechanical joints
► Button head & countersunk options for low-profile assembly
► Metric & imperial sizes in alloy, stainless, & black oxide
► Precision-machined threads for accurate fit
► Bulk packs for manufacturing & repair workshops

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  • BBI - M8-1.25x130mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549137
    BBI - M8-1.25x130mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549137
    BBI - M8-1.25x130mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549137This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $10.18
    $10.18
  • BBI - M8-1.25x120mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549136
    BBI - M8-1.25x120mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549136
    BBI - M8-1.25x120mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549136This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $7.69
    $7.69
  • BBI - M8-1.25x110mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549135
    BBI - M8-1.25x110mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549135
    BBI - M8-1.25x110mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549135This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $8.12
    $8.12
  • BBI - M8-1.25x100mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549134
    BBI - M8-1.25x100mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549134
    BBI - M8-1.25x100mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549134This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $4.55
    $4.55
  • BBI - M8-1.25x90mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549133
    BBI - M8-1.25x90mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549133
    BBI - M8-1.25x90mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549133This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $4.37
    $4.37
  • BBI - M8-1.25x80mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549132
    BBI - M8-1.25x80mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549132
    BBI - M8-1.25x80mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549132This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $4.23
    $4.23
  • BBI - M8-1.25x75mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549131
    BBI - M8-1.25x75mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549131
    BBI - M8-1.25x75mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549131This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $4.16
    $4.16
  • BBI - M8-1.25x70mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549130
    BBI - M8-1.25x70mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549130
    BBI - M8-1.25x70mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549130This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $3.47
    $3.47
  • BBI - M8-1.25x65mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549129
    BBI - M8-1.25x65mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549129
    BBI - M8-1.25x65mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549129This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $3.49
    $3.49
  • BBI - M8-1.25x60mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549128
    BBI - M8-1.25x60mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549128
    BBI - M8-1.25x60mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549128This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $2.77
    $2.77
  • BBI - M8-1.25x55mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549126
    BBI - M8-1.25x55mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549126
    BBI - M8-1.25x55mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549126This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $3.29
    $3.29
  • BBI - M8-1.25x50mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549124
    BBI - M8-1.25x50mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549124
    BBI - M8-1.25x50mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549124This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $2.71
    $2.71
  • BBI - M8-1.25x45mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549122
    BBI - M8-1.25x45mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549122
    BBI - M8-1.25x45mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549122This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $2.40
    $2.40
  • BBI - M8-1.25x40mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549120
    BBI - M8-1.25x40mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549120
    BBI - M8-1.25x40mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549120This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $2.39
    $2.39
  • BBI - M8-1.25x35mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549118
    BBI - M8-1.25x35mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549118
    BBI - M8-1.25x35mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549118This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $1.96
    $1.96
  • BBI - M8-1.25x30mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549116
    BBI - M8-1.25x30mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549116
    BBI - M8-1.25x30mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549116This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $1.90
    $1.90
  • BBI - M8-1.25x25mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549114
    BBI - M8-1.25x25mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549114
    BBI - M8-1.25x25mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549114This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $1.86
    $1.86
  • BBI - M8-1.25x20mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549112
    BBI - M8-1.25x20mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549112
    BBI - M8-1.25x20mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549112This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $1.33
    $1.33
  • BBI - M8-1.25x16mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549110
    BBI - M8-1.25x16mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549110
    BBI - M8-1.25x16mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549110This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $1.32
    $1.32
  • BBI - M8-1.25x12mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549108
    BBI - M8-1.25x12mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549108
    BBI - M8-1.25x12mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549108This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $1.38
    $1.38

Precision Fastening That Delivers

From fabrication tables to engine components, our socket screws deliver tight, high-strength fastening in every rotation. Trust them in builds where clearance, durability, & reliability matter.

► High-torque drive for confident, flush installation

► Ideal for machine tools, robotics & structural assemblies

► Available in corrosion-resistant & black finishes

Frequently Asked Questions

Socket screws allow for high clamping force in tighter spaces with internal drive heads, making them ideal for machine assembly & compact builds.

Absolutely. Their high tensile strength & precision fit make them a go-to fastener for tools, engines, & equipment.

Yes. We offer stainless socket screws for corrosion resistance & outdoor use, along with alloy steel options for heavy-duty strength.

Brands

BBI

BBI
Bremick

Bremick
Champion

Champion
EHI

EHI
Excision

Excision
Hobsons

Hobsons
Rally

Rally