The GrovTec 7/8" Machine Screw with Nut and Spacer – 12 Pack (MPN: GTHM53) provides heavy-duty, pass-through attachment points for rifle slings and stud-mounted accessories on composite, synthetic, and hollow firearm stocks. Machined from steel with a protective black finish, each swivel stud features a 10-32 thread pitch and a 7/8-inch (22.2 mm) shank length designed for stocks where internal backing nut access is available. The included white spacer washers prevent stock marring and ensure proper alignment when torquing the backing nuts into place.

Key Features

• Pass-Through Mechanical Fastening: Uses a 10-32 machine thread with a dedicated backing nut to provide secure anchoring in hollow composite or synthetic forends and buttstocks.
• Standard Accessory Interface: Compatible with standard quick-detach (QD) sling swivels, locking swivels, and stud-mounted bipods like Harris-style mounts.
• Stock Protection: Includes 12 white spacer washers to seat against the exterior stock surface, eliminating marring during installation and tensioning.
• Bulk Workshop Supply: Packaged as a 12-pack of complete assemblies, providing hardware for up to six standard two-stud rifle stock installations.

Product Specifications

• Material: Machined steel
• Finish: Black
• Shank Length: 7/8 inch (0.875 in / ~22.2 mm)
• Thread Specification: 10-32 thread pitch
• Total Packaged Weight: ~0.240 lbs (~109 g)
• Package Contents: 12 machine screw swivel studs, 12 backing nuts, 12 white spacer washers

Who is the GrovTec 7/8" Machine Screw with Nut and Spacer - 12 Pack for?

• Gunsmiths and stock makers — Need a workshop supply of firearm sling swivel studs featuring 10-32 thread pitch machine screws and matching backing nuts in a bulk 12 pack for custom stock builds and bedding jobs.
• DIY hunters — Require a 7/8-inch length machine-threaded sling stud replacement to secure slings or bipods to hollow synthetic factory rifle stocks where internal nut access exists.

Less suitable for: Solid wood stocks lacking internal cavity access (which require coarse wood-screw threaded studs), thin forends where a 7/8-inch shank causes internal clearance interference (which require shorter 1/2-inch or 1/4-inch machine screws), or modern handguards equipped with M-LOK or Picatinny slots (which require dedicated direct-attach rail sling mounts).