M4.0 x 10.5mm Steel Reduced Head, Round Knurled Open End Body Imperial Rivet Nuts, Grip range 0.5 – 2.0mm, Hole Size 6.4mm (1/4″)

Steel, zinc plated
Also known as reduced head rivet nuts
Near flush finish without the need to countersink the hole
Ideal for harder materials, as the increased bearing area increases torque to turn
Sizes shown are thread size x original length
For best results, hole diameter should be 0.1mm larger than rivet nut body
Grip range: Minimum and maximum material thickness into which the nut can be set