Purpose built for the instalation of ring base mounts, picatinny weaver rails, and/or ring caps on firearms. For replacing worn, corroded & damaged screws, or even just for a new custom build The screws's black oxide finish provides excellent protection against rust and corrosion. Designed to withstand heavy loads and demanding conditions, ensuring long-lasting and dependable use. Crafted from high-quality alloy steel for superior strength and longevity. 12.9 Hardness (as opposed to 10.9 common throughout the indistry) combined with our head design, limit the chance of screw heads tearing from the thread stem when use with higher caliber rifles Suit most popular bases and/or rails such as Warne, Weaver, Burris, Leupold and Millett. Check your application, threaded holes and base countersink ensuring 6-48 is the correct thread, and if you requre Oval or Fillister head Shear precision. Not shear under pressure.
These 12.9-grade hardened Torx screws are built for shooters who need lasting strength, clean drive, and a reliable hold under recoil.
Finished in black oxide (blued), they’re made to endure.
Available in 6-48 (T10) and 8-40 (T15) thread variants.
Length and head style selectable via variation menu.
Not sure which you need?
Consult your user manual and/or local gunsmith.
Note on Screw Lengths:
All listed lengths refer to the total screw length, including head. Applies to both over-weaver and fillister styles.
Let’s be honest — not everyone’s using a gunsmith.
No depth gauge? Use a wooden toothpick to check the hole depth without damaging threads. Easy.
Threads may also appear as:
6x48,
6-48,
#6-48,
No.6-48,
6 48,
6-48 UNEF 8x40,
8-40,
#8-40,
No.8-40,
8 40,
8-40 UNF Reference Dimensions & Torque Specs: -
6-48 =
#6 screw, 48 TPI, approx.
0.1380" diameter (3.51 mm)
Recommended torque:
18 in-lbs (2.03 Nm)
-
8-40 =
#8 screw, 40 TPI, approx.
0.1640" diameter (4.17 mm)
Recommended torque:
25–28 in-lbs (2.82–3.16 Nm)
Do not exceed 30 in-lbs unless specified by your hardware manufacturer. Torque values are based on
dry threads. Applying lubrication (including oils or grease) will alter the required torque and may result in over-tightening.
Use of
blue thread locker is
optional—not required—when screws are torqued to
nominal tension.
We know
over-tightened screws can be good for business… but we’d rather see you back because you’re fitting out a new rig—not because your old one went to scrap.
Use the right tools, follow best practices, and give your gear the care it deserves.
Built to
industry standards for
Scope Ring Bases,
optic mounts, and
custom rifle platforms.
Ideal for
gunsmithing,
replacements, and
builds where failure is not an option.
Note: Ensure your
Torx drivers are properly ground and fit snugly to the socket head to avoid stripping.
- 6-48 screws use
Torx T10 - 8-40 screws use
Torx T15
