The Forster Ruger & Mark II replacement screw (brand part no. SMRUGR) is threaded to the 10×32 specification used on Ruger and Ruger Mark II pistol actions, giving a gunsmith an exact-fit replacement instead of forcing a generic hardware screw into a thread it wasn’t cut for. Forster Products makes this as a single replacement screw rather than a multi-piece kit, useful when only one specific screw on a Ruger 77 Mark II or similar action needs swapping out. Matching the original thread pitch avoids cross-threading a hole that a mismatched screw could permanently damage. Stock it with the rest of our gunsmithing tools and gunsmith supplies for Ruger action upkeep.

Key Specifications

• Ruger 77 Mark II Fitment Sized specifically for Ruger 77 Mark II and related pistol action hardware.
• 10×32 Thread Matches the exact thread pitch used on this hardware, avoiding a cross-threaded or loose fit.
• Sold Individually A single replacement screw rather than a multi-piece kit.

Frequently Asked Questions

Does this screw fit every Ruger model? It’s sized specifically for the 77 Mark II and closely related hardware rather than every Ruger action across the lineup.

Why not use a standard 10×32 hardware screw? Length and head profile matter as much as thread pitch on firearm hardware, so a purpose-built replacement is the safer bet.

Buy the Forster Ruger & Mark II Guide Screw, 10×32 Thread

An exact-fit replacement screw beats forcing a close-enough substitute into precision hardware. Order this replacement screw from our Lubbock, Texas gun shop for fast, insured shipping to your bench.