5/8"-18 x 2 1/2" Socket Head Cap Screws, Partial Thread / Alloy Steel / Thermal Black Oxide
- Steel
- Thermal Black Oxide
- 18 TPI · Fine
- ASME B18.3, ASTM F835
$129.26
$5.17 / pc
Package of 25
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Product Description
5/8"-18 x 2 1/2" Socket Head Cap Screws, Partial Thread / Alloy Steel / Thermal Black Oxide
5/8"-18 x 2 1/2" socket head cap screw in Alloy Steel, thermal black oxide finish. For tooling, jigs and machine builds where the head must counterbore flush.
- SOCKET HEAD — a cylindrical head driven by hex key — high torque capacity in a small footprint, and it counterbores flush
- HEX SOCKET DRIVE — an internal hex taking an Allen key; high torque in a compact head that counterbores flush
- THERMAL BLACK OXIDE — a hot black oxide finish for socket products — dimensionally neutral, and mildly rust inhibiting when oiled
- PARTIAL THREAD — an unthreaded shank under the head carries shear on the solid section and lets the joint pull tight rather than jacking apart
- ALLOY STEEL — quenched and tempered for high tensile strength; nearly always supplied with a protective finish since the base metal rusts readily
Frequently Asked Questions
What hex key size do I need for this socket head cap screw?
For this 5/8"-18 Socket Head Cap Screw, use a 1/2" hex key (Allen wrench).
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.
$129.26
$5.17/pc
Socket Head Cap Screw, Partial Thread / Alloy Steel / Black Oxide
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5/8"-18 x 2 1/2" Socket Head Cap Screws, Partial Thread / Alloy Steel / Thermal Black Oxide
SKU: 011457-25
Technical Specifications
Thread Size
5/8"-18
Thread Series
UNF
Thread Pitch
18 TPI
Thread Coverage
Partial Thread
Length
2 1/2"
Material
Steel
Finish
Thermal Black Oxide
Drive
Hex Socket (Allen)
Head Style
Socket Head
Standard
ASME B18.3, ASTM F835
Tensile Strength
180000
Hardness
C37 - C45
Measurement System
Inch
SKU
011457-25
https://www.ecomfasteners.com/products/5-8-18-x-2-1-2-socket-head-cap-screw-partial-thread-alloy-steel-black-oxide-astm-f835-sae-j429-asme-b18-3 · Printed