Standard: MS 16995
Available sizes: 10# to 8# (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 10# | 0.625 | 0.307 | 0.500 | 0.9360 | 0.9210 | 11 UNC-3A | 0.6250 | 0.616 | 0.505 | 0.6163 | 0.625 |
| 2# | 0.1120 | 0.051 | 0.0937 | 0.183 | 0.176 | 40 UNC-3A |
| 0.1120 |
| 0.108 |
| 0.0952 |
| 0.1075 |
| 0.112 |
| 4# | 0.1640 | 0.077 | 0.1406 | 0.270 | 0.262 | 32 UNC-3A | 0.1640 | 0.159 | 0.1426 | 0.1585 | 0.164 |
| 6# | 0.2500 | 0.120 | 0.1875 | 0.375 | 0.365 | 20 UNC-3A | 0.2500 | 0.244 | 0.1900 | 0.2435 | 0.250 |
| 8# | 0.3750 | 0.182 | 0.3125 | 0.563 | 0.550 | 18 UNC-3A | 0.3750 | 0.368 | 0.3160 | 0.3678 | 0.375 |
Standard corrosion protection for indoor and mild outdoor environments.
Salt spray: 96–200 hours | RoHS compliant (trivalent chromium)
High-performance coating for automotive, marine, and harsh environments.
Salt spray: 720–1500 hours | Recommended for grade 8.8+
Heavy-duty protection for structural and outdoor applications.
Salt spray: 500–1000 hours | Thread tolerance adjustment required
Note for high-strength fasteners (Grade 10.9, 12.9): Electroplating processes require hydrogen embrittlement relief baking (minimum 4 hours at 200°C within 4 hours of plating). Contact our engineering team for grade-specific plating recommendations.
Request detailed technical specifications, material certifications, and availability information for your application requirements. Our engineering team can provide product recommendations, custom specifications, and technical documentation.
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