What Our Hex Flange Nuts Do Best
Our hex flange nuts feature a wide, integrated flange that spreads clamping force over a broader area, protecting surfaces and creating a more secure hold without a separate washer. That larger bearing surface helps reduce pull-through on softer materials and minimizes marring on finished parts, all while improving stability under vibration.
They are made to take on daily abuse in production and maintenance environments. The geometry supports stable torque application so your settings translate into predictable preload. In applications with vibration, the increased contact area helps maintain clamp load, while the flange protects coatings and softer substrates during tightening and service.
If you need a more traditional setup, or you are building out a full bill of materials, you can pair these with our Hex Nut for standard joints, upgrade to our Heavy Hex Nut when you want more bearing surface and torque capacity, or use our Hex Jam Nut as a low-profile lock against a primary nut.
BN 860-Style Flange Performance
Like the BN 860 style, our flange nuts provide a wide flange that evens out pressure and boosts grip confidence. The broad footprint acts as a built-in washer to deliver a tight, uniform clamp that stays put under repeated load cycles. You get consistent torque transfer, fewer re-torques, and a dependable seat that helps the joint resist loosening over time.
Secure Hold Without Extra Hardware
Because the washer face is integrated, you eliminate a separate part, speed up assembly, and reduce the chance of mix-ups on the line. The flange face also helps the nut sit square on the surface, which improves alignment and creates a uniform clamp even when space is tight. Fewer components mean simpler kits, faster training, and less inventory to track.
Smooth Install, Confident Finish
Everything about these nuts is designed to make installers faster and more accurate. The hex profile provides steady tool engagement for hand or power installation, and the flange centers the nut as you run it down. Once seated, the wider base prevents edge digging and distributes stress so your assemblies look clean and perform like they should.
FAQs
What is a hex flange nut?
A hex flange nut is a six-sided nut with a built-in washer-style flange at its base. The flange increases the bearing surface so clamping force is spread more evenly across the material. This design improves grip and reduces the need for a separate washer in many applications.
What is the purpose of a hex flange nut?
Its purpose is to create a secure, stable clamp while protecting the surface under the nut. The wider base helps prevent pull-through and reduces damage to coatings or softer substrates. It also enhances joint reliability in environments with vibration.
How to install a hex flange nut?
Place the flange face against the mating surface and thread the nut onto the bolt or stud by hand to start. Use a properly sized wrench or driver to tighten until you reach the torque specified for your fastener size and grade. Ensure the flange seats flat and that the joint is aligned before final torque.
How to check the hex flange nut size?
Confirm size by checking the thread diameter and pitch on the bolt or stud the nut will mate with. Measure across the flats to verify wrench size, and confirm the flange outer diameter meets your bearing surface needs. If you are replacing an existing part, match thread specs and compare the flange footprint to maintain the same contact area.
