螺栓 规格表
螺栓是机械和建筑领域最广泛使用的紧固件。六角螺栓(KS B 1002)、内六角螺栓、沉头螺栓、自攻螺钉等不同头型适用于不同场合。强度等级(4.8、8.8、10.9、12.9)显著影响许用载荷。碳钢为标准材料；室外、食品和医疗环境使用不锈钢(A2/A4)或特殊镀层产品。
六角螺栓
Hex Bolt · 16个尺寸
Socket Head Cap Screw
Socket Head Cap Screw · 11个尺寸
沉头螺栓
Countersunk Bolt · 8个尺寸
Pan Head Screw
Pan Head Screw · 5个尺寸
紧定螺钉
Set Screw · 7个尺寸
吊环螺栓
Eye Bolt · 7个尺寸
U形螺栓
U-Bolt · 9个尺寸
蝶形螺栓
Wing Bolt · 5个尺寸
自攻螺钉
Tapping Screw · 8个尺寸
全螺纹螺栓
Threaded Rod · 9个尺寸
Unified Thread
Unified Thread · 10个尺寸
凸缘螺栓
Hex Flange Bolt · 7个尺寸
常见问题 (FAQ)
What is the clearance hole size for an M10 bolt?
For M10 bolts, 11mm drill is standard. Loose fit: 11.5mm, medium: 11mm, close: 10.5mm.
What is the difference between a hex bolt and a socket head cap screw?
Hex bolts have a hexagonal head tightened with a spanner. Socket head cap screws have a hex socket driven by an Allen key. Socket screws take less space and give a cleaner appearance.
What do bolt strength grades (4.8, 8.8, 10.9) mean?
First digit × 100 = tensile strength (MPa); full value × 10 = yield strength (MPa). Example: grade 8.8 means 800 MPa tensile, 640 MPa yield.