Cup Head Square Neck Bolts with Large Head
GB /T 14 - 1998 大半圆头方颈螺栓
See all versions and complete specifications: Cup Head Square Neck Bolts with Large Head — Full Specification Page
| Standard Body | Standard Number |
|---|---|
| GB | GB /T 14 |
| NF | NF E 27-351 |
| DIN | DIN 603 |
| ISO | ISO 8677 |
| UNI | UNI 5732 |
| ANSI | ANSI/ASME B 18.5.2.3M |
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M5 | 1 | 6.48 | 3 | 16 | 14.9 | 18 | / | 3.4 | 3.6 | / | 4.6 |
| M6 | 1.5 | 10.58 | 5 | 24 | 22.7 | 26 | 32 | 5.4 |
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.
| 5.8 |
| / |
| 6.6 |
| M8 | 2 | 16.7 | 8 | 38 | 36.4 | 38 | 44 | 11.1 | 8.9 | 57 | 12.9 |
| M10 | 2.5 | 20.84 | 10 | 46 | 44.4 | 46 | 52 | 14.1 | 10.9 | 65 | 15.9 |
© 2026 Ningbo Ruixi Metal Surface Technology Co., Ltd.. All rights reserved.