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Forum > Product Details & Gun Parts Identification > Other Manufacturers > Rock Island / Armscor. grip screws

Rock Island / Armscor. grip screws

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JD
Joined: July 2018
Posts: 2
Posted: April 29, 2022 10:00 AM

Looking for information on part # 158740A.

I would like to know the thread pitch and diameter of this screw. Unfortunately the manufacture has used sever  types of grip screws and I have ordered the wrong parts in the past.

Thanks 

JD

hunt40
Joined: March 2010
Posts: 230
Posted: May 16, 2022 07:11 AM

 

  The thread pitch and diameter of #158740 is 1/4" X 28.

JD
Joined: July 2018
Posts: 2
Posted: May 17, 2022 01:03 PM

Sorry apparently I'm an idiot.   The pt.# I'm looking for is 1857410A. This time I cut and past the #

hunt40
Joined: March 2010
Posts: 230
Posted: May 17, 2022 02:28 PM

 

  That's fine. I should have considered your heading of Armscor grip screw instead of just the item number given. Item #1857410 is a metric thread of M4 X 0 .5.