Flange Bolt
A bolt with a flange below the head. Confirm the bearing face and thread.
- Standard
- Confirm with drawing
- Thread diameter and pitch
- Specify in RFQ
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Hex Head Bolt
An externally driven bolt for industrial assemblies. Confirm thread and geometry on the drawing.
- Standard
- Confirm with drawing
- Thread diameter and pitch
- Specify in RFQ
Socket Head Cap Screw
Specify the required internal drive, thread and head clearance.
- Standard
- Confirm with drawing
- Thread diameter and pitch
- Specify in RFQ
How to choose a bolt for your assembly
Check head style and tool clearance first. Match diameter and pitch to the mating thread. Use your drawing to confirm how length is measured.
Attributes
| Head style | Tool access and clearance |
|---|---|
| Thread | Diameter, pitch and length |
| Finish | Material and finish required by the drawing |
Frequently asked questions
How do I compare hex and socket head bolts?
Check head clearance and tool access. Confirm the required geometry on the drawing.
What if I need a non-standard length?
Send a drawing showing the overall geometry, length reference and threaded portion.
Which thread details should I include in an inquiry?
Specify metric or inch threads, nominal diameter, pitch or threads per inch, and the required length. Include the applicable standard or a drawing, together with matching nuts or tapped-hole information. Similar-looking threads should not be assumed to fit.
How should I specify material and surface treatment?
List the base material or grade separately from plating or coating. Describe indoor or outdoor exposure, contact with other metals and any appearance requirements. The quotation should identify the proposed material and finish rather than relying on a photograph.