

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The GIBRALTAR 61603G is a metric flange nut designed for secure fastening in mechanical, industrial, and trade applications. Manufactured from Grade 12L14 steel with a black oxide finish, this nut provides corrosion resistance and consistent clamping force. The integrated flange distributes load over a wider bearing surface, reducing the need for a separate washer. Thread size is M10 x 1.50 with a flange diameter of 22 millimeters, an overall height of 13 millimeters, and a width across flats of 17 millimeters. At 0.06 pounds, this is a lightweight but robust fastener suited for precision assembly work by mechanics, HVAC technicians, and pipe fitters.
The GIBRALTAR 61603G is appropriate for use in residential and light commercial mechanical systems where metric fastening is required. Common applications include equipment mounting, bracket assembly, and structural connections in HVAC units, pump assemblies, and general mechanical installations. The black oxide finish makes it suitable for indoor environments or moderately protected outdoor settings where mild corrosion resistance is needed. This nut is sold individually and is compatible with M10 x 1.50 threaded rod, bolts, and studs per metric fastener standards.
Designed as a metric flange nut compatible with M10 x 1.50 threaded fasteners including bolts, studs, and threaded rod conforming to metric thread standards.
Installation is typically performed by mechanics, HVAC technicians, or plumbers using a 17 millimeter wrench or socket. Power down or isolate any equipment before fastener service on live mechanical assemblies. Do not exceed the rated clamping capacity of the fastener, and inspect threads for damage or contamination before installation. Follow applicable equipment manufacturer torque guidelines when specified in service documentation.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!