Contact Apex Fasteners

Designed for OEM, industrial and production applications.

Contact Apex for production quantities, custom requirements and volume pricing.

Authorized Distributor for:

Hex Drive - 1/8" Shoulder Diameter

Tight Tolerance Mil Spec Smooth Head Shoulder Screw Hex Drive
1/8" Shoulder Diameter


All products are made in the USA, precision machined from DFARS compliant material, and lot traceable.

All shoulder diameters meet or exceed accepted industry standards and MS5176.

All stainless steel screws adhere to environmental regulations established by European Union RoHS directive.

Passivated per QQ-P-35.
EHR1008-MILH
EHRMS51576-3
EHR1008-MILH EHR1008-MILH
HexDriveSmoothHeadShoulderScrewDiagram.png


18-8 Stainless Steel - 1/8" Shoulder Diameter
Tight Tolerance Mil Spec Smooth Head Shoulder Screw Hex Drive

Part Number

Mil Spec Number
Shoulder
Diam
0.124"- 0.125"
Shoulder
Length
Shoulder
Length
Min. to Max.
Head
Diam
Head
Height
Hex
Drive Size
Thread
Size
Thread
Length
EHR1000-MILH 1/8" 1/8" 0.1250"-0.1270" 1/4" 1/8" 5/64" 4-40 5/32"
EHRMS51576-1
EHR1004-MILH 1/8" 3/16" 0.1875"-0.1895" 1/4" 1/8" 5/64" 4-40 5/32"
EHRMS51576-2
EHR1008-MILH 1/8" 1/4" 0.2500"-0.2520" 1/4" 1/8" 5/64" 4-40 5/32"
EHRMS51576-3
EHR1012-MILH 1/8" 5/16" 0.3125"-0.3145" 1/4" 1/8" 5/64" 4-40 5/32"
EHRMS51576-4
EHR1016-MILH 1/8" 3/8" 0.3750"-0.3770" 1/4" 1/8" 5/64" 4-40 5/32"
EHRMS51576-5



Proud member of US SMALL BUSINESS Chamber of Commerce



APEX FASTENERS, Inc - 15858 Business Center Drive - Irwindale, CA 91706 USA
APEX Fasteners supplies standard and custom screws, nut retainers, shoulder screws, plastites and taptites, all types of rivets, spring steel fasteners and special stampings, sems screws in standard, fractional or metric to electronics, aviation and other OEM industries worldwide. ApexFasteners.com custom manufactures screw machine components for electronic enclosure hardware as well as cold forming and cold headed specials for assembly and production requirements.
Tel: (626) 962-2219 - info@apexfasteners.com
Copyright © 2026 Apex Fasteners. Designed by Pope Productions