► 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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  • Hobsons - 3/8" x 2" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0370200
    Hobsons - 3/8" x 2" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0370200
    Hobsons - 3/8" x 2" - Bs2470 Socket Head Cap Screw - Plain - BSW - Qty 100 | SHSOPW0370200This Hobson is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Finish: Plain Steel Pack quantity: 100...
    $3.65
    $3.65
  • Hobsons - 3/8" x 1-3/4" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0370175
    Hobsons - 3/8" x 1-3/4" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0370175
    Hobsons - 3/8" x 1-3/4" - Bs2470 Socket Head Cap Screw - Plain - BSW - Qty 100 | SHSOPW0370175This Hobson is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Finish: Plain Steel Pack quantity: 100...
    $3.55
    $3.55
  • Hobsons - 3/8" x 1-1/2" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0370150
    Hobsons - 3/8" x 1-1/2" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0370150
    Hobsons - 3/8" x 1-1/2" - Bs2470 Socket Head Cap Screw - Plain - BSW - Qty 200 | SHSOPW0370150This Hobson is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Finish: Plain Steel Pack quantity: 200...
    $3.45
    $3.45
  • Hobsons - 3/8" x 1-1/4" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0370125
    Hobsons - 3/8" x 1-1/4" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0370125
    Hobsons - 3/8" x 1-1/4" - Bs2470 Socket Head Cap Screw - Plain - BSW - Qty 200 | SHSOPW0370125This Hobson is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Finish: Plain Steel Pack quantity: 200...
    $3.35
    $3.35
  • Hobsons - 3/8" x 1" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0370100
    Hobsons - 3/8" x 1" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0370100
    Hobsons - 3/8" x 1" - Bs2470 Socket Head Cap Screw - Plain - BSW - Qty 100 | SHSOPW0370100This Hobson is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Finish: Plain Steel Pack quantity: 100...
    $3.25
    $3.25
  • Hobsons - 3/8" x 7/8" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0370087
    Hobsons - 3/8" x 7/8" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0370087
    Hobsons - 3/8" x 7/8" - Bs2470 Socket Head Cap Screw - Plain - BSW - Qty 200 | SHSOPW0370087This Hobson is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Finish: Plain Steel Pack quantity: 200...
    $3.15
    $3.15
  • Hobsons - 3/8" x 3/4" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0370075
    Hobsons - 3/8" x 3/4" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0370075
    Hobsons - 3/8" x 3/4" - Bs2470 Socket Head Cap Screw - Plain - BSW - Qty 200 | SHSOPW0370075This Hobson is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Finish: Plain Steel Pack quantity: 200...
    $3.06
    $3.06
  • Hobsons - 3/8" x 5/8" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0370062
    Hobsons - 3/8" x 5/8" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0370062
    Hobsons - 3/8" x 5/8" - Bs2470 Socket Head Cap Screw - Plain - BSW - Qty 200 | SHSOPW0370062This Hobson is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Finish: Plain Steel Pack quantity: 200...
    $2.96
    $2.96
  • Hobsons - 3/8" x 1/2" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0370050
    Hobsons - 3/8" x 1/2" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0370050
    Hobsons - 3/8" x 1/2" - Bs2470 Socket Head Cap Screw - Plain - BSW - Qty 200 | SHSOPW0370050This Hobson is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Finish: Plain Steel Pack quantity: 200...
    $2.86
    $2.86
  • Hobsons - 5/16" x 5" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0310500
    Hobsons - 5/16" x 5" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0310500
    Hobsons - 5/16" x 5" - Bs2470 Socket Head Cap Screw - Plain - BSW - Qty 100 | SHSOPW0310500This Hobson is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Finish: Plain Steel Pack quantity: 100...
    $2.76
    $2.76
  • Hobsons - 5/16" x 4-1/2" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0310450
    Hobsons - 5/16" x 4-1/2" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0310450
    Hobsons - 5/16" x 4-1/2" - Bs2470 Socket Head Cap Screw - Plain - BSW - Qty 100 | SHSOPW0310450This Hobson is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Finish: Plain Steel Pack quantity: 100...
    $2.66
    $2.66
  • Hobsons - 5/16" x 4" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0310400
    Hobsons - 5/16" x 4" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0310400
    Hobsons - 5/16" x 4" - Bs2470 Socket Head Cap Screw - Plain - BSW - Qty 100 | SHSOPW0310400This Hobson is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Finish: Plain Steel Pack quantity: 100...
    $2.56
    $2.56
  • Hobsons - 5/16" x 3-1/2" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0310350
    Hobsons - 5/16" x 3-1/2" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0310350
    Hobsons - 5/16" x 3-1/2" - Bs2470 Socket Head Cap Screw - Plain - BSW - Qty 100 | SHSOPW0310350This Hobson is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Finish: Plain Steel Pack quantity: 100...
    $2.46
    $2.46
  • Hobsons - 5/16" x 3-1/4" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0310325
    Hobsons - 5/16" x 3-1/4" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0310325
    Hobsons - 5/16" x 3-1/4" - Bs2470 Socket Head Cap Screw - Plain - BSW - Qty 100 | SHSOPW0310325This Hobson is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Finish: Plain Steel Pack quantity: 100...
    $2.36
    $2.36
  • Hobsons - 5/16" x 3" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0310300
    Hobsons - 5/16" x 3" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0310300
    Hobsons - 5/16" x 3" - Bs2470 Socket Head Cap Screw - Plain - BSW - Qty 100 | SHSOPW0310300This Hobson is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Finish: Plain Steel Pack quantity: 100...
    $2.27
    $2.27
  • Hobsons - 5/16" x 2-3/4" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0310275
    Hobsons - 5/16" x 2-3/4" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0310275
    Hobsons - 5/16" x 2-3/4" - Bs2470 Socket Head Cap Screw - Plain - BSW - Qty 100 | SHSOPW0310275This Hobson is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Finish: Plain Steel Pack quantity: 100...
    $2.17
    $2.17
  • Hobsons - 5/16" x 2-1/2" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0310250
    Hobsons - 5/16" x 2-1/2" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0310250
    Hobsons - 5/16" x 2-1/2" - Bs2470 Socket Head Cap Screw - Plain - BSW - Qty 200 | SHSOPW0310250This Hobson is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Finish: Plain Steel Pack quantity: 200...
    $1.97
    $1.97
  • Hobsons - 5/16" x 2" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0310200
    Hobsons - 5/16" x 2" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0310200
    Hobsons - 5/16" x 2" - Bs2470 Socket Head Cap Screw - Plain - BSW - Qty 200 | SHSOPW0310200This Hobson is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Finish: Plain Steel Pack quantity: 200...
    $1.77
    $1.77
  • Hobsons - 5/16" x 1-3/4" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0310175
    Hobsons - 5/16" x 1-3/4" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0310175
    Hobsons - 5/16" x 1-3/4" - Bs2470 Socket Head Cap Screw - Plain - BSW - Qty 200 | SHSOPW0310175This Hobson is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Finish: Plain Steel Pack quantity: 200...
    $1.68
    $1.68
  • Hobsons - 5/16" x 1-1/2" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0310150
    Hobsons - 5/16" x 1-1/2" - BS2470 Socket Head Cap Screw - Plain - BSW | SHSOPW0310150
    Hobsons - 5/16" x 1-1/2" - Bs2470 Socket Head Cap Screw - Plain - BSW - Qty 200 | SHSOPW0310150This Hobson is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Finish: Plain Steel Pack quantity: 200...
    $1.58
    $1.58

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