What are the exact thread lengths and specifications included in the GrovTec GTHM50 pack?

The GTHM50 pack includes two distinct wood screw studs designed for specific stock locations. The fore-end stud features a 1/2 inch coarse wood screw thread, while the buttstock or rear stud features a longer 3/4 inch coarse wood screw thread, both precision-machined from hardened steel with a durable black-oxide finish.

Are these wood screw studs suitable for hollow synthetic composite rifle stocks?

No, wood screw studs like the GTHM50 are unsuitable for hollow-wall synthetic composite stocks or thin-walled tactical fore-ends. They require solid timber, laminate, or thick dense synthetic gunstocks, and hollow stocks will instead require machine screw studs with backing nuts.

What pilot hole and countersink dimensions are required to properly install the GTHM50 studs in a timber stock?

Proper installation requires drilling a pilot hole of 5/32 inch drilled slightly deeper than the screw length, followed by a 7/32 inch countersink drilled 1/8 inch deep. This ensures the included matching synthetic spacer washers sit flush and protect your rifle stock's finish from crushing or scratching.

Do I need any special Australian electrical or regulatory certifications for this product?

No, regulatory certifications such as SAA/RCM approvals and 240V power compatibility are not applicable. The GTHM50 is a purely mechanical, unpowered firearm hardware component that is fully compliant for civilian, hunting, and sporting use across all Australian states and territories.

What compatible sling swivels or accessories can be paired directly with these studs for field carry?

The studs feature a standard US QD sling swivel stud eyelet that accepts standard push-lock or mechanical locking quick-detach swivels, and can also serve as a secure mounting base for Harris-style hunting bipods. For added utility in the field, you can pair your setup with compatible gear like the GrovTec GTAC86 rifle cartridge slide for convenient ammo carriage.

Sling Swivel Studs - GrovTec GTHM50

The GrovTec Sling Swivel Stud Pack (GTHM50) provides direct-thread attachment points for mounting rifle slings and standard Harris-style hunting bipods to solid gunstocks. Precision-machined in the USA from hardened steel with a protective black-oxide finish, this two-piece hardware set includes a dedicated shorter screw for rifle fore-ends and a longer screw for rear buttstocks. Both studs feature standard US quick-detach (QD) eyelets to accept mechanical locking sling swivels, while included synthetic spacer washers protect the stock finish from marring during installation and carry.

Key Features

Two-Piece Wood Thread Set: Includes one 1/2 in (12.7 mm) coarse thread stud designed for rifle fore-ends and one 3/4 in (19.05 mm) coarse thread stud for buttstocks.
All-Steel Construction: Machined from hardened steel with a corrosion-resistant black-oxide finish for field durability.
Stock Protection: Supplied with white and black synthetic spacer rings to cushion the interface between the steel stud base and the stock surface.
Universal Interface: Standard US QD stud profile accepts standard push-lock sling swivels as well as clamp-on Harris-style bipod mounts.

Specifications

Brand: GrovTec US, Inc.
Model: GTHM50
Fore-end Stud Thread: 1/2 in (12.7 mm) coarse wood screw thread
Buttstock Stud Thread: 3/4 in (19.05 mm) coarse wood screw thread
Material: Machined steel
Finish: Black-oxide
Pilot Hole Requirement: 5/32 in (approx. 3.97 mm) pilot hole with a 7/32 in (approx. 5.56 mm) countersink drilled 1/8 in (approx. 3.18 mm) deep
Country of Origin: USA

Who is the GrovTec Sling Swivel Stud Pack for?

Hunters retrofitting solid timber or dense synthetic stocks — Secures carry slings and bipods directly into solid wood or laminate stocks using a 1/2 in (12.7 mm) fore-end wood screw and a 3/4 in (19.05 mm) buttstock wood screw that thread straight into pre-drilled pilot holes.
Sporting shooters replacing worn or stripped factory hardware — Restores standard rifle sling swivel stud mounting points with precision-machined steel 1/2 in and 3/4 in coarse-threaded studs to securely anchor replacement quick-detach swivels.

Less suitable for: Hollow-wall synthetic composite stocks or thin-walled tactical fore-ends that lack the material depth to grip coarse wood threads; these configurations require machine-screw studs with backing nuts (such as 10-32 threaded studs) or dedicated hollow-stock push-button flush cups.

SKU	GT40849LP
Model #	GTHM50
Brand	Grovetec
Shipping Weight	1.0000kg

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Grovtec Gthm50 Sling Swivel Stud Pack Steel Black-Oxide

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