1/4"-20 x 3/8" Cup Point Socket Set Screws / Alloy Steel / Thermal Black Oxide
- Steel
- Thermal Black Oxide
- 20 TPI · Coarse
- ASME B18.3, ASTM F835
$18.83
$0.188 / pc
Package of 100
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Product Description
1/4"-20 x 3/8" Cup Point Socket Set Screws / Alloy Steel / Thermal Black Oxide
Frequently Asked Questions
Which set screw point type should I use?
Cup point (most common) provides maximum holding power on hard shafts. Cone point requires a matching dimple for permanent positioning. Flat point is for soft surfaces or applications requiring frequent adjustment. Half-Dog point locks into a groove for axial retention. Oval point is gentler on the shaft surface.
Does Black Oxide finish provide corrosion protection?
Black Oxide provides mild corrosion resistance through a controlled oxidation process. It is dimensionally stable (no plating buildup), will not chip or flake, and is suitable for indoor use. For outdoor or wet environments, additional oil coating or a different finish (zinc, stainless) is recommended.
$18.83
$0.188/pc
Cup Point Allen Set Screw (Thermal) / Alloy Steel / Black Oxide
Family: 101
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1/4"-20 x 3/8" Cup Point Socket Set Screws / Alloy Steel / Thermal Black Oxide
SKU: 101313-100
Technical Specifications
Thread Size
1/4"-20
Thread Series
UNC
Thread Pitch
20 TPI
Length
3/8"
Material
Steel
Finish
Thermal Black Oxide
Drive
Hex Socket (Allen)
Head Style
Headless (Set Screw)
Standard
ASME B18.3, ASTM F835
Point Type
Cup
Tensile Strength
180000
Hardness
C37 - C45
Measurement System
Inch
SKU
101313-100
https://www.ecomfasteners.com/products/1-4-20-x-3-8-cup-point-allen-set-screw-thermal-alloy-steel-black-oxide-astm-f835-sae-j429-asme-b18-3 · Printed