6061-T6 aluminum male-to-female threaded standoffs for mounting panels, guards and brackets. An integral male stud screws into a tapped mounting point; the female end accepts a matching bolt. The raised center hex provides wrench access, with both smooth round sections smaller than the hex across flats.
Sold in packs of 100 identical parts. Cart quantity 1 = 100 pieces. Choose thread size and body length. Body length excludes the male stud; overall length is body length plus stud length.
Threads: 1/4-20, 5/16-18, 3/8-16 or 1/2-13 UNC. Male class 2A and female class 2B, right hand. Body lengths: 1.000, 1.250, 1.500, 2.000 and 2.500 inches.
Dimensions in inches by thread size: 1/4-20: 0.375 round OD, 0.500 hex across flats, 0.250 hex length, 0.375 minimum female thread depth from female face; 5/16-18: 0.469 round OD, 0.625 hex across flats, 0.312 hex length, 0.469 minimum female thread depth from female face; 3/8-16: 0.562 round OD, 0.750 hex across flats, 0.375 hex length, 0.562 minimum female thread depth from female face; 1/2-13: 0.750 round OD, 1.000 hex across flats, 0.500 hex length, 0.625 minimum female thread depth from female face.
Male stud lengths by thread: 1/4-20 = .375; 5/16-18 = .500; 3/8-16 = .625; 1/2-13 = .750. Stud length includes the shoulder relief and tip chamfer. Female thread depths listed above are measured to the last full thread from the female end face. Female bore is blind, leaving at least .100 solid material before the stud shoulder.
Bare machined and deburred; no coating. Round OD and body length tolerance +/- .003; hex and stud length +/- .005; hex across flats +.000/-.005. Hex centered on the body within .005. Surface finish 125 microinch Ra maximum.
Manufacturing reference: MMW-AMS-001 Rev A. Variant SKU matches the drawing part number. Mounting hardware is not included.