Contact Apex Fasteners

Designed for OEM, industrial and production applications.

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

Authorized Distributor for:

Product 6/11

 Previous 
 Return to the Product List 
 Next 

Standard Round Head Knob

rndknob.jpg
 rdtsdrw4.jpg

Presses Onto Any Standard Socket Head Cap Screw
Material: Acetal

COLOR CODES MUST BE INCLUDED WITH THE PRODUCT NUMBER WHEN ORDERING.   
B - Black    RD - Red    WT - White   
BL - Blue    GR - Green

Product Number A
(+/- 0.031)
 B
(+/-.031)
 C
(+/-.031)		 Fits Screw
PMRHK004B
 0.312
 0.171
 0.281
 #4
PMRHK004BL 0.312 0.171 0.281 #4
PMRHK004GR 0.312 0.171 0.281 #4
PMRHK004RD 0.312 0.171 0.281 #4
PMRHK004WT 0.312 0.171 0.281 #4
PMRHK006B 0.375
 0.203
 0.328
 #6
PMRHK006BL 0.375 0.203 0.328 #6
PMRHK006GR 0.375 0.203 0.328 #6
PMRHK006RD 0.375 0.203 0.328 #6
PMRHK006WT 0.375 0.203 0.328 #6
PMRHK008B 0.500
 0.218
 0.375
 #8
PMRHK008BL 0.500 0.218 0.375 #8
PMRHK008GR 0.500 0.218 0.375 #8
PMRHK008RD 0.500 0.218 0.375 #8
PMRHK008WT 0.500 0.218 0.375 #8
PMRHK010B 0.656
 0.250
 0.421
 #10
PMRHK010BL 0.656 0.250 0.421 #10
PMRHK010GR 0.656 0.250 0.421 #10
PMRHK010RD 0.656 0.250 0.421 #10
PMRHK010WT 0.656 0.250 0.421 #10
PMRHK141B 1.000
 0.328 0.500
 1/4
PMRHK141BL 1.000 0.328 0.500 1/4
PMRHK141GR 1.000 0.328 0.500 1/4
PMRHK141RD 1.000 0.328 0.500 1/4
PMRHK141WT 1.000 0.328 0.500 1/4
PMRHK147B 0.750
 0.312
 0.500 1/4
PMRHK147BL 0.750 0.312 0.500 1/4
PMRHK147GR 0.750 0.312 0.500 1/4
PMRHK147RD 0.750 0.312 0.500 1/4
PMRHK147WT 0.750 0.312 0.500 1/4
PMRHK516B 1.000
 0.390
 0.593
 5/16
PMRHK516BL 1.000 0.390 0.593 5/16
PMRHK516GR 1.000 0.390 0.593 5/16
PMRHK516RD 1.000 0.390 0.593 5/16
PMRHK516WT 1.000 0.390 0.593 5/16



Product 6/11

 Previous 
 Return to the Product List 
 Next 
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