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MS51861-25
#6 1/2 Tapping Screw
Description
Tapping Screw
Specifications
| Alternate Part Number | MS24617-11 AN530-6R8 |
|---|---|
| Country of Origin | USA |
| Diameter | 6 |
| Fastener Length | 0.469 inches minimum and 0.531 inches maximum |
| Features Provided | Casehardened |
| Head Angle | 100 ? |
| Head Diameter | 0.256 inches minimum and 0.270 inches maximum |
| Head Height | 0.087 inches minimum and 0.097 inches maximum |
| Head Style | Pan Head |
| Head Type | Pan |
| Industry Standards/Certification | MS51861 |
| Internal Drive Style | Cross recess type 1 |
| Length | 1/2 in, 17/32 |
| Material | Steel |
| NIIN | 00-432-4164 |
| NSN | 5305-00-432-4164 |
| Nondefinitive Specification/Std Data | Ab type |
| Nonmachine Thread Diameter | 0.138 |
| Nonmachine Thread Style | Gimlet point (type a, ab or ba) |
| Point Type | A |
| Size | #6, 6-20 |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416,type 2,class 3 fed spec single treatment response |
| Weight | 0.0002 lb |
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for MS51861-25 — functionally equivalent.
- AN530-6R8 Listed alternate 1/2 in · Steel
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- MS51861-25C MS 1/2 in · Pan Head · Steel
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Catalog data updated 2026-07-05. Report a data error