# DIBBS #SPE4A6-27-T-6633

DLA solicitation for 76 boxes of non-substitutable Mil-Spec hexagon-head cap screws

**Posted:** October 26, 2026
**Respond By:** November 02, 2026
**Identifier:** SPE4A6-27-T-6633
**NAICS:** 332722

DLA Weapons Support is seeking 76 boxes of tightly specified, non-substitutable Mil-Spec hexagon-head cap screws.
- **Buyer:** Defense Logistics Agency (DLA), DLA Weapons Support, ASC Commodities Division; the listed buyer contact is Daniel Fink.
- **Product:** 76 boxes of hexagon-head cap screws, with 100 screws per box (7,600 screws total).
  - NSN: 5305-01-284-1389; part piece number: 0.25-20UNC-2A, Grade 5, Type I.
  - Size: 0.250-20UNC-2A × 1.000 inch long.
  - Zinc plating must meet ASTM B633, Type 2, SC 3, Class Fe/Zn 13.
- **Requirements:** Fasteners must carry the specified permanent markings, including material symbol, manufacturer symbol, and lot number, and meet traceability requirements. Substitution is prohibited because the item is designated for a critical application.
- **Delivery:** FOB origin, within 210 days after order; inspection and acceptance are at origin.
- **OEMs and vendors:** No manufacturer or vendor is named. The solicitation is available through DLA's DIBBS procurement portal.

### Description

SCREW, CAP, HEXAGON HEAD (QTY: 76, NSN: 5305-01-284-1389 Mil-Spec, Purchase Request: 7018861070)

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE4A627T6633)