► 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 - #8-32x1/2" (Ft) - Imperial 304 Button Socket Screw UNC | 202029
    BBI - #8-32x1/2" (Ft) - Imperial 304 Button Socket Screw UNC | 202029
    BBI - #8-32x1/2" (Ft) - Imperial 304 Button Socket Screw UNC | 202029This BBI #8-32x1/2" is a low-profile button head socket screw driven with an Allen key.► Key Features Size: #8-32x1/2" Thread: UNC Grade: Grade 304 for reliable strength Finish: 304 Stainless Steel for...
    $0.35
    $0.35
  • BBI - #8-32x3/8" (Ft) - Imperial 304 Button Socket Screw UNC | 202028
    BBI - #8-32x3/8" (Ft) - Imperial 304 Button Socket Screw UNC | 202028
    BBI - #8-32x3/8" (Ft) - Imperial 304 Button Socket Screw UNC | 202028This BBI #8-32x3/8" is a low-profile button head socket screw driven with an Allen key.► Key Features Size: #8-32x3/8" Thread: UNC Grade: Grade 304 for reliable strength Finish: 304 Stainless Steel for...
    $0.35
    $0.35
  • BBI - #8-32x1/4" (Ft) - Imperial 304 Button Socket Screw UNC | 202027
    BBI - #8-32x1/4" (Ft) - Imperial 304 Button Socket Screw UNC | 202027
    BBI - #8-32x1/4" (Ft) - Imperial 304 Button Socket Screw UNC | 202027This BBI #8-32x1/4" is a low-profile button head socket screw driven with an Allen key.► Key Features Size: #8-32x1/4" Thread: UNC Grade: Grade 304 for reliable strength Finish: 304 Stainless Steel for...
    $0.70
    $0.70
  • BBI - #6-32x3/4" (Ft) - Imperial 304 Button Socket Screw UNC | 202026
    BBI - #6-32x3/4" (Ft) - Imperial 304 Button Socket Screw UNC | 202026
    BBI - #6-32x3/4" (Ft) - Imperial 304 Button Socket Screw UNC | 202026This BBI #6-32x3/4" is a low-profile button head socket screw driven with an Allen key.► Key Features Size: #6-32x3/4" Thread: UNC Grade: Grade 304 for reliable strength Finish: 304 Stainless Steel for...
    $0.90
    $0.90
  • BBI - #6-32x5/8" (Ft) - Imperial 304 Button Socket Screw UNC | 202025
    BBI - #6-32x5/8" (Ft) - Imperial 304 Button Socket Screw UNC | 202025
    BBI - #6-32x5/8" (Ft) - Imperial 304 Button Socket Screw UNC | 202025This BBI #6-32x5/8" is a low-profile button head socket screw driven with an Allen key.► Key Features Size: #6-32x5/8" Thread: UNC Grade: Grade 304 for reliable strength Finish: 304 Stainless Steel for...
    $0.81
    $0.81
  • BBI - #6-32x1/2" (Ft) - Imperial 304 Button Socket Screw UNC | 202024
    BBI - #6-32x1/2" (Ft) - Imperial 304 Button Socket Screw UNC | 202024
    BBI - #6-32x1/2" (Ft) - Imperial 304 Button Socket Screw UNC | 202024This BBI #6-32x1/2" is a low-profile button head socket screw driven with an Allen key.► Key Features Size: #6-32x1/2" Thread: UNC Grade: Grade 304 for reliable strength Finish: 304 Stainless Steel for...
    $0.33
    $0.33
  • BBI - #6-32x3/8" (Ft) - Imperial 304 Button Socket Screw UNC | 202023
    BBI - #6-32x3/8" (Ft) - Imperial 304 Button Socket Screw UNC | 202023
    BBI - #6-32x3/8" (Ft) - Imperial 304 Button Socket Screw UNC | 202023This BBI #6-32x3/8" is a low-profile button head socket screw driven with an Allen key.► Key Features Size: #6-32x3/8" Thread: UNC Grade: Grade 304 for reliable strength Finish: 304 Stainless Steel for...
    $0.51
    $0.51
  • BBI - #6-32x1/4" (Ft) - Imperial 304 Button Socket Screw UNC | 202022
    BBI - #6-32x1/4" (Ft) - Imperial 304 Button Socket Screw UNC | 202022
    BBI - #6-32x1/4" (Ft) - Imperial 304 Button Socket Screw UNC | 202022This BBI #6-32x1/4" is a low-profile button head socket screw driven with an Allen key.► Key Features Size: #6-32x1/4" Thread: UNC Grade: Grade 304 for reliable strength Finish: 304 Stainless Steel for...
    $0.50
    $0.50
  • BBI - #4-40x1/2" (Ft) - Imperial 304 Button Socket Screw UNC | 202019
    BBI - #4-40x1/2" (Ft) - Imperial 304 Button Socket Screw UNC | 202019
    BBI - #4-40x1/2" (Ft) - Imperial 304 Button Socket Screw UNC | 202019This BBI #4-40x1/2" is a low-profile button head socket screw driven with an Allen key.► Key Features Size: #4-40x1/2" Thread: UNC Grade: Grade 304 for reliable strength Finish: 304 Stainless Steel for...
    $0.59
    $0.59
  • BBI - #4-40x3/8" (Ft) - Imperial 304 Button Socket Screw UNC | 202018
    BBI - #4-40x3/8" (Ft) - Imperial 304 Button Socket Screw UNC | 202018
    BBI - #4-40x3/8" (Ft) - Imperial 304 Button Socket Screw UNC | 202018This BBI #4-40x3/8" is a low-profile button head socket screw driven with an Allen key.► Key Features Size: #4-40x3/8" Thread: UNC Grade: Grade 304 for reliable strength Finish: 304 Stainless Steel for...
    $0.47
    $0.47
  • BBI - #4-40x1/4" (Ft) - Imperial 304 Button Socket Screw UNC | 202017
    BBI - #4-40x1/4" (Ft) - Imperial 304 Button Socket Screw UNC | 202017
    BBI - #4-40x1/4" (Ft) - Imperial 304 Button Socket Screw UNC | 202017This BBI #4-40x1/4" is a low-profile button head socket screw driven with an Allen key.► Key Features Size: #4-40x1/4" Thread: UNC Grade: Grade 304 for reliable strength Finish: 304 Stainless Steel for...
    $0.41
    $0.41
  • BBI - 3/4"-10x3 1/2" (Pt) - Imperial 316 Socket Head Cap Screw UNC | 14168
    BBI - 3/4"-10x3 1/2" (Pt) - Imperial 316 Socket Head Cap Screw UNC | 14168
    BBI - 3/4"-10x3 1/2" (Pt) - Imperial 316 Socket Head Cap Screw UNC | 14168This BBI 3/4"-10x3 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: 3/4"-10x3 Thread: UNC Grade: Grade 316 for reliable strength...
    $70.81
    $70.81
  • BBI - 3/4"-10x1 1/2" (Ft) - Imperial 316 Socket Head Cap Screw UNC | 14167
    BBI - 3/4"-10x1 1/2" (Ft) - Imperial 316 Socket Head Cap Screw UNC | 14167
    BBI - 3/4"-10x1 1/2" (Ft) - Imperial 316 Socket Head Cap Screw UNC | 14167This BBI 3/4"-10x1 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: 3/4"-10x1 Thread: UNC Grade: Grade 316 for reliable strength...
    $39.95
    $39.95
  • BBI - 7/16"-14x2" (Ft) - Imperial 316 Socket Head Cap Screw UNC | 14166
    BBI - 7/16"-14x2" (Ft) - Imperial 316 Socket Head Cap Screw UNC | 14166
    BBI - 7/16"-14x2" (Ft) - Imperial 316 Socket Head Cap Screw UNC | 14166This BBI 7/16"-14x2" is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: 7/16"-14x2" Thread: UNC Grade: Grade 316 for reliable strength Finish:...
    $18.58
    $18.58
  • BBI - 7/16"-14x1 1/2" (Ft) - Imperial 316 Socket Head Cap Screw UNC | 14165
    BBI - 7/16"-14x1 1/2" (Ft) - Imperial 316 Socket Head Cap Screw UNC | 14165
    BBI - 7/16"-14x1 1/2" (Ft) - Imperial 316 Socket Head Cap Screw UNC | 14165This BBI 7/16"-14x1 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: 7/16"-14x1 Thread: UNC Grade: Grade 316 for reliable strength...
    $16.57
    $16.57
  • BBI - 7/16"-14x1" (Ft) - Imperial 316 Socket Head Cap Screw UNC | 14164
    BBI - 7/16"-14x1" (Ft) - Imperial 316 Socket Head Cap Screw UNC | 14164
    BBI - 7/16"-14x1" (Ft) - Imperial 316 Socket Head Cap Screw UNC | 14164This BBI 7/16"-14x1" is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: 7/16"-14x1" Thread: UNC Grade: Grade 316 for reliable strength Finish:...
    $11.54
    $11.54
  • BBI - 3/8"-16x4" (Pt) - Imperial 316 Socket Head Cap Screw UNC | 14163
    BBI - 3/8"-16x4" (Pt) - Imperial 316 Socket Head Cap Screw UNC | 14163
    BBI - 3/8"-16x4" (Pt) - Imperial 316 Socket Head Cap Screw UNC | 14163This BBI 3/8"-16x4" is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: 3/8"-16x4" Thread: UNC Grade: Grade 316 for reliable strength Finish:...
    $11.25
    $11.25
  • BBI - 3/8"-16x3" (Pt) - Imperial 316 Socket Head Cap Screw UNC | 14162
    BBI - 3/8"-16x3" (Pt) - Imperial 316 Socket Head Cap Screw UNC | 14162
    BBI - 3/8"-16x3" (Pt) - Imperial 316 Socket Head Cap Screw UNC | 14162This BBI 3/8"-16x3" is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: 3/8"-16x3" Thread: UNC Grade: Grade 316 for reliable strength Finish:...
    $9.17
    $9.17
  • BBI - 1/4"-20x7/8" (Ft) - Imperial 316 Socket Head Cap Screw UNC | 14161
    BBI - 1/4"-20x7/8" (Ft) - Imperial 316 Socket Head Cap Screw UNC | 14161
    BBI - 1/4"-20x7/8" (Ft) - Imperial 316 Socket Head Cap Screw UNC | 14161This BBI 1/4"-20x7/8" is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: 1/4"-20x7/8" Thread: UNC Grade: Grade 316 for reliable strength Finish:...
    $1.21
    $1.21
  • BBI - 5/8"-11x4" (Pt) - Imperial 316 Socket Head Cap Screw UNC | 14158
    BBI - 5/8"-11x4" (Pt) - Imperial 316 Socket Head Cap Screw UNC | 14158
    BBI - 5/8"-11x4" (Pt) - Imperial 316 Socket Head Cap Screw UNC | 14158This BBI 5/8"-11x4" is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: 5/8"-11x4" Thread: UNC Grade: Grade 316 for reliable strength Finish:...
    $43.13
    $43.13

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