Standard: ASME B 18.27
Available sizes: 1 to 7/8 (7 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 1.486 | 0.141 | 0.135 | 0.052 | 0.048 | 1.501 | 1.476 | 0.060 | 0.048 | 0.050 | 0.050 |
| 1-1/16 | 1.552 | 0.150 | 0.144 | 0.052 | 0.048 | 1.567 | 1.542 |
| 0.091 |
| 0.074 |
| 0.050 |
| 0.076 |
| 13/16 | 1.081 | 0.118 | 0.113 | 0.044 | 0.040 | 1.091 | 1.076 | 0.052 | 0.040 | 0.042 | 0.042 |
| 15/16 | 1.351 | 0.135 | 0.129 | 0.052 | 0.048 | 1.366 | 1.341 | 0.060 | 0.048 | 0.050 | 0.050 |
| 3/4 | 0.944 | 0.104 | 0.099 | 0.044 | 0.040 | 0.954 | 0.939 | 0.052 | 0.040 | 0.042 | 0.042 |
| 5/8 | 0.808 | 0.089 | 0.085 | 0.037 | 0.033 | 0.818 | 0.803 | 0.052 | 0.040 | 0.035 | 0.042 |
| 7/8 | 1.217 | 0.129 | 0.123 | 0.052 | 0.048 | 1.232 | 1.207 | 0.060 | 0.048 | 0.050 | 0.050 |
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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