The primary duty of Hex Nuts with Collars, 1.5d Height is a hex nut 1.5 d high with a collar, used where frequent tightening would wear a normal nut. Below: the sectors that specify them in volume, the checklist used to select the right size and material for the application, installation notes, and the known limits of the type. Stocked across roughly M6 to M48, they cover general to heavy-duty work.
Typical Applications for Hex Nuts with Collar, 1.5d Height
The most common settings where these are specified:
- Machine tools: table clamps and fixtures.
- Die and mold making: clamping sets that are reused.
- Presses: tooling fixings under high load.
- Workholding: T-slot bolt nuts with bearing collars.
How to Specify Hex Nuts with Collar, 1.5d Height for Your Application
- Size: Match the nominal size to the mating thread or hole. This product spans M6–M48; check the full table below for the exact dimensions of each size.
- Locking & grade: Match the strength grade to the bolt, and choose a locking style (nyloc, all-metal, serrated flange) if the joint sees vibration.
- Environment: For damp, coastal or chemical exposure prefer A4/316 stainless or a suitable coating; indoors, plated steel or A2 is usually sufficient.
- Standard: This product is supplied to DIN 6331. Quoting the standard on your order guarantees interchangeable dimensions between suppliers.
Installation & Assembly Practice
- Run the nut down by hand before applying the wrench to catch cross-threading early.
- Tighten the nut rather than the bolt head where access allows — the torque-to-preload relation is more consistent.
- For locking styles, note that nyloc inserts are single-use in critical joints and lose grip above roughly 120 °C.
Common Selection Mistakes with Hex Nuts with Collar, 1.5d Height
- Pairing a high-class bolt with a lower-class nut — the nut strips before the bolt reaches proof load; the nut class must meet or exceed the bolt class.
- Using a plain nut with a spring washer in severe vibration instead of a prevailing-torque locking nut.
- Re-using nyloc nuts in critical joints.
Where Hex Nuts with Collar, 1.5d Height Are Not the Right Choice
Not on their own — they need a matching bolt or stud — and a plain nut is not a substitute for a locking type under heavy vibration.
Custom manufacturing · Made to drawing
Need a hex nuts with collar, 1.5d height outside the standard range?
Height and across-flats are the two most often changed — a thinner nut for clearance, a larger hex for a tool that is already on the line. Made by cold heading or tapping.
Minimum order from 2,000 pieces; samples within 7 days of drawing approval.
