About this product
Material: C20 Hardness: HRC38-42
Executive Standard: EN ISO 12100:2010; EN ISO 3266:2010/A1:2015; EN 1677-4:2000/A1:2008
- CE CERTIFICATE
- 4 Times coefficient of safety
- Forge low carbon steel
Model | PD-UNC1 1/4" | Dimension M | 1-7/64" |
Dimension D | 1-1/4"-7 | Dimension G | 1-5/64" |
Dimension A | 2-23/64" | Dimension H | 4-19/64" |
Dimension B | 4-1/4" | Dimension I | 9/32" |
Dimension C | 2-35/64" | Dimension L | 1-49/64" |
Dimension E | 55/64" | WLL | 7937 lbs |
Dimension F | 61/64" | Country of origin | China |
Inspection Procedure
- Overall dimensions inspection according to acceptance criteria. No crack and defect, the marks of specification , supporting capacity and material on the surface should be clear.
- Test with thread ring gauge. Precision grade 6g(0.21OZ)
- Thread axis vertical to bearing surface, rotating the gauge to the screw root, if it's of seamless joint with bearing surface, then vertical qualified.
- Qualified hoist ring must offer the certificate or detailed examining report in written form, and keep in the archives.
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Number of hanging point | 1 | 2 | 2 | 2 | |
Lifting angle | 0° | 0° | ≤90° | ≤90° | |
Model | Thread Specification(mm) | working safety limit load(WLL)lbs | |||
PD-UNC1 1/4" | 1 1/4"x7 | 7937 | 15874 | 7937 | 11111 |
All are 4 times to the safety coefficient at all the lifting directions.
- Thread holes are deep enough to ensure that the bolt is fully screwed in
- bolt firmly fixed contact surface mount(with manual rotation, do not allow using tools to tighten)
- Equipment materials can withstand tension, will not deform.