联系我们
CONTACT US
Manager Bao : +8613562085088
E-Mail：gxyitong02@163.com
Address: Guanxian Industrial Park, Shandong Province
bolt
Specifications: 16x42, 16x45
Level: 4.8
Purpose: Used to connect wave beam and anti-blocking block
Type: Ordinary hexagonal galvanized type, ordinary hexagonal spray type, pentagonal female anti-theft type, double female anti-theft type
technical parameter
1. Appearance quality: the surface of the galvanized component has a uniform and complete coating color. The surface is practical and smooth. There is no sagging, dripping or excess agglomeration; the surface of the plated part has no defects such as missing plating or exposed iron; the shape of the component is not Obvious torsion, the end burrs must be removed, and the threads and nuts shall not be affected by the galvanization of the bolts.
2. Tensile strength ab, MPa: ≥375
3. Structure size
3.1 Bolt M 16±0.43mm
3.2 Bolt b 42±1.25. 45±1.25
3.3 Bolt L >35
3.4 Pendulum mother a≥29.56
3.5 nut b 26.16+0.84-0
3.6 Nut t 16.0+1.1-0
3.7 Pad garden Φ1≥31.4
3.8 Pad garden Φ2 17.0+0.43-0
3.9 Pad country t 4.0+0.8-0.5
4. Quality of galvanized anti-corrosion layer
4.1 Coating adhesion performance: The coating of galvanized components should be firmly bonded to the base metal, and the coating should not peel off or bulge after the hammer test
4.2 Galvanized adhesion (g/m2): average galvanized adhesion ≥350 minimum galvanized adhesion ≥275
4.3 Coating thickness δ (μm): average coating thickness ≥50 minimum coating thickness ≥39
4.4 Uniformity: The coating of galvanized components should be uniform and the sample should be etched 5 times with copper sulfate solution without copper plating.
4.5 Salt spray corrosion resistance: Put the fastener component sample in the salt spray test box, after 200 hours of salt spray resistance test, the sample has no rust phenomenon
CUSTOMER CASE
RELATED PRODUCTS
联系我们
CONTACT US
Manager Bao : +8613562085088
E-Mail：gxyitong02@163.com
Address: Guanxian Industrial Park, Shandong Province
版权信息
© 2021 Guanxian Yitong Expressway Facilities Co., Ltd.鲁ICP备13031534号-1Powered by www.300.cn