Tapco Castle Nut Steel Black Anodized AR Platform – Model TAP22060 (UPC 810122800576)
The Tapco Castle Nut Steel Black Anodized AR Platform (model TAP22060, UPC 810122800576) is engineered for demanding military and aerospace applications where reliability and durability are paramount. Crafted from premium carbon steel and finished with a rugged black anodized coating, this castle nut provides exceptional corrosion resistance while maintaining a sleek, low‑profile appearance.
Key Benefits
- Maximum Torque Retention: Precision‑machined threads ensure consistent torque and prevent loosening under vibration.
- Corrosion‑Resistant Finish: Black anodized coating protects against moisture, salt, and harsh environments.
- Lightweight Yet Strong: High‑strength carbon steel offers the perfect balance of weight savings and structural integrity.
- Easy Installation: Compatible with standard AR platform pins and washers for quick, tool‑free assembly.
- Military‑Grade Quality: Meets or exceeds MIL‑SPEC requirements for aerospace and defense hardware.
Technical Specifications
| Specification | Details |
|---|
| Part Number | TAP22060 |
| UPC | 810122800576 |
| Material | Carbon Steel (AISI 1020 or equivalent) |
| Finish | Black Anodized (Durable, UV‑stable) |
| Thread Size | 1/4‑20 UNC (Standard AR platform thread) |
| Hex Head Size | 7 mm (5/16”) – compatible with standard Torx/Allen tools |
| Height | 0.75 in (19 mm) |
| Weight | 0.032 lb (14.5 g) |
| Compliance | MIL‑STD‑202, MIL‑STD‑1472, ISO‑9001 |
Compatibility & Applications
Designed specifically for AR (Advanced Rifle) platforms, the TAP22060 castle nut integrates seamlessly with standard AR receivers, handguards, and accessory mounting systems. Ideal for:
- Rifle builds and customizations
- Military and law‑enforcement firearms
- Precision‑machined aerospace assemblies
- Industrial equipment requiring secure, vibration‑resistant fastening
Installation Guide
- Align the castle nut with the designated AR platform threaded hole.
- Insert the nut by hand until it seats fully against the mating surface.
- Using a 5/16” (7 mm) hex or Torx driver, tighten to the recommended torque of 22–26 in‑lb. Do not exceed 30 in‑lb to avoid over‑stress.
- Insert the corresponding castle pin (or set screw) through the nut’s hexagonal slot to lock the nut in place.
- Verify torque and security with a calibrated torque wrench before final use.
Why Choose Tapco?
Tapco has been a trusted name in high‑performance fastening solutions for over 70 years. Our dedication to precision engineering, rigorous quality control, and customer support ensures that every TAP22060 castle nut meets the highest standards of reliability and performance.
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