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MS51861-22
#6 1/4 Tapping Screw
Description
Tapping Screw
Specifications
| Alternate Part Number | AN530-6R4 |
|---|---|
| Country of Origin | USA |
| Diameter | 6 |
| Fastener Length | Between 0.219 inches and 0.281 inches |
| Features Provided | Casehardened |
| Head Angle | 100 ? |
| Head Diameter | Between 0.256 inches and 0.270 inches |
| Head Height | Between 0.087 inches and 0.097 inches |
| Head Style | Pan Head |
| Head Type | Pan |
| Industry Standards/Certification | MS51861 |
| Internal Drive Style | Cross recess type 1 |
| Length | 1/4 in |
| Material | Steel |
| NIIN | 00-432-8027 |
| NSN | 5305-00-432-8027 |
| Nondefinitive Specification/Std Data | Ab type |
| Nonmachine Thread Diameter | 0.138 |
| Nonmachine Thread Style | Type a |
| Point Type | A |
| Size | #6, 6-20 |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Class 3 federal specification all treatment responses type 2 qq-p-416 |
| Weight | 0.0002 lb |
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for MS51861-22 — functionally equivalent.
- AN530-6R4 Listed alternate 1/4 in · Round Head · Steel
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Catalog data updated 2026-07-05. Report a data error