► 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 - M16-2.00x120mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549274
    BBI - M16-2.00x120mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549274
    BBI - M16-2.00x120mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549274This BBI M16 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M16 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $42.01
    $42.01
  • BBI - M16-2.00x110mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549273
    BBI - M16-2.00x110mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549273
    BBI - M16-2.00x110mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549273This BBI M16 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M16 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $40.74
    $40.74
  • BBI - M16-2.00x100mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549272
    BBI - M16-2.00x100mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549272
    BBI - M16-2.00x100mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549272This BBI M16 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M16 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $25.08
    $25.08
  • BBI - M16-2.00x90mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549270
    BBI - M16-2.00x90mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549270
    BBI - M16-2.00x90mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549270This BBI M16 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M16 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $22.63
    $22.63
  • BBI - M16-2.00x80mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549266
    BBI - M16-2.00x80mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549266
    BBI - M16-2.00x80mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549266This BBI M16 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M16 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $17.32
    $17.32
  • BBI - M16-2.00x75mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549264
    BBI - M16-2.00x75mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549264
    BBI - M16-2.00x75mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549264This BBI M16 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M16 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $27.37
    $27.37
  • BBI - M16-2.00x70mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549262
    BBI - M16-2.00x70mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549262
    BBI - M16-2.00x70mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549262This BBI M16 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M16 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $14.09
    $14.09
  • BBI - M16-2.00x65mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549260
    BBI - M16-2.00x65mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549260
    BBI - M16-2.00x65mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549260This BBI M16 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M16 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $15.70
    $15.70
  • BBI - M16-2.00x60mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549258
    BBI - M16-2.00x60mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549258
    BBI - M16-2.00x60mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549258This BBI M16 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M16 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $13.12
    $13.12
  • BBI - M16-2.00x55mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549256
    BBI - M16-2.00x55mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549256
    BBI - M16-2.00x55mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549256This BBI M16 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M16 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $16.00
    $16.00
  • BBI - M16-2.00x50mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549254
    BBI - M16-2.00x50mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549254
    BBI - M16-2.00x50mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549254This BBI M16 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M16 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $12.39
    $12.39
  • BBI - M16-2.00x45mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549252
    BBI - M16-2.00x45mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549252
    BBI - M16-2.00x45mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549252This BBI M16 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M16 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $10.61
    $10.61
  • BBI - M16-2.00x40mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549250
    BBI - M16-2.00x40mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549250
    BBI - M16-2.00x40mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549250This BBI M16 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M16 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $11.37
    $11.37
  • BBI - M16-2.00x35mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549248
    BBI - M16-2.00x35mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549248
    BBI - M16-2.00x35mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549248This BBI M16 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M16 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $10.52
    $10.52
  • BBI - M16-2.00x30mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549246
    BBI - M16-2.00x30mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549246
    BBI - M16-2.00x30mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549246This BBI M16 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M16 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $9.45
    $9.45
  • BBI - M16-2.00x25mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549244
    BBI - M16-2.00x25mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549244
    BBI - M16-2.00x25mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549244This BBI M16 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M16 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $9.22
    $9.22
  • BBI - M16-2.00x20mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549242
    BBI - M16-2.00x20mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549242
    BBI - M16-2.00x20mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549242This BBI M16 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M16 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $9.62
    $9.62
  • BBI - M12-1.75x200mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549226
    BBI - M12-1.75x200mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549226
    BBI - M12-1.75x200mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549226This BBI M12 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M12 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $157.33
    $157.33
  • BBI - M12-1.75x150mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549225
    BBI - M12-1.75x150mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549225
    BBI - M12-1.75x150mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549225This BBI M12 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M12 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $25.38
    $25.38
  • BBI - M12-1.75x140mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549224
    BBI - M12-1.75x140mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549224
    BBI - M12-1.75x140mm (Pt) - Metric Socket Head Cap Screw A4-70 (316) | 549224This BBI M12 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M12 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $24.32
    $24.32

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