Push-button adjustable levers GN 303.2: lever length 30 to 78 mm, thread M4 to M10 and inch, stud length, stroke — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/push-button-clamping-levers-gn-303-2/ (sheet CC BY 4.0) Basis: JW Winco's GN 303.2 table (printed in inches), mm converted Catalog version: 2026-10-20 Sizes: see table below - GN 303.2 is the adjustable lever of the GN 300 family with a push button: press the button to release the serrations instead of pulling the lever up. JW Winco's table (threaded stud, zinc-plated steel stud, PA push button, powder-coated black body) is printed in inches with the stud lengths l2 in inches; the lever lengths 1.18 / 1.77 / 2.48 / 3.07 in are the 30 / 45 / 63 / 78 mm levers, and l2 in the part numbers is in mm (shown here in mm). The millimetre figures in brackets are the printed inches × 25.4 (the sheet prints only two decimals, so they are good to about ±0.3 mm). Letters are JW Winco's: this sheet prints d2, d3, h1, h2, h3 and h4 (stroke); the GN 300 sheet prints d3, d4, h1 to h4 for the same lever sizes and the 45 mm lever has the same 10 / 13 mm pair under d2 / d3 here and d3 / d4 there (h1 differs: 26.5 mm with the button, 24.5 without), so the letters are not interchangeable. - The push-button lever covers four lever sizes (30 to 78 mm), M4 to M10 and #10-32 to 1/2-13 threads; the 10-24 rows of the 30 mm lever and the 10-32 rows of the 30 mm lever have no entries on the sheet. The lever cannot be taken apart once assembled (JW Winco: for applications where the lever does not need to be disassembled). - Numbers only: no outline of the lever and button is published as coordinates. lever length l1, mm thread d1 stud lengths l2, mm d2, in (mm) d3, in (mm) h1, in (mm) h2, in (mm) h3, in (mm) h4 stroke, in (mm) 30 M4 12, 16, 20, 25, 32 0.39 (9.9) 0.51 (13.0) 1.04 (26.4) 0.16 (4.1) 1.22 (31.0) 0.14 (3.6) 30 M5 12, 16, 20, 25, 32, 40, 50 0.39 (9.9) 0.51 (13.0) 1.04 (26.4) 0.16 (4.1) 1.22 (31.0) 0.14 (3.6) 30 M6 12, 16, 20, 25, 32, 40, 50 0.39 (9.9) 0.51 (13.0) 1.04 (26.4) 0.16 (4.1) 1.22 (31.0) 0.14 (3.6) 45 10-32 10, 12, 16, 20, 25, 32 0.39 (9.9) 0.51 (13.0) 1.04 (26.4) 0.16 (4.1) 1.38 (35.1) 0.14 (3.6) 45 10-24 16, 20, 32 0.39 (9.9) 0.51 (13.0) 1.04 (26.4) 0.16 (4.1) 1.38 (35.1) 0.14 (3.6) 45 1/4-20 10, 12, 16, 20, 25, 32, 40, 45 0.39 (9.9) 0.51 (13.0) 1.04 (26.4) 0.16 (4.1) 1.38 (35.1) 0.14 (3.6) 45 M4 12, 16, 20, 25, 32 0.39 (9.9) 0.51 (13.0) 1.04 (26.4) 0.16 (4.1) 1.38 (35.1) 0.14 (3.6) 45 M5 12, 16, 20, 25, 32, 40, 50 0.39 (9.9) 0.51 (13.0) 1.04 (26.4) 0.16 (4.1) 1.38 (35.1) 0.14 (3.6) 45 M6 12, 16, 20, 25, 32, 40, 50 0.39 (9.9) 0.51 (13.0) 1.04 (26.4) 0.16 (4.1) 1.38 (35.1) 0.14 (3.6) 63 1/4-20 16, 20, 25 0.53 (13.5) 0.69 (17.5) 1.28 (32.5) 0.26 (6.6) 1.77 (45.0) 0.16 (4.1) 63 5/16-18 12, 16, 20, 25, 32, 40, 45, 50, 63 0.53 (13.5) 0.69 (17.5) 1.28 (32.5) 0.26 (6.6) 1.77 (45.0) 0.16 (4.1) 63 M6 16, 20, 25, 32, 40, 50, 63 0.53 (13.5) 0.69 (17.5) 1.28 (32.5) 0.26 (6.6) 1.77 (45.0) 0.16 (4.1) 63 M8 16, 20, 25, 32, 40, 50, 63 0.53 (13.5) 0.69 (17.5) 1.28 (32.5) 0.26 (6.6) 1.77 (45.0) 0.16 (4.1) 78 3/8-16 16, 20, 25, 32, 40, 45, 50, 63 0.63 (16.0) 0.83 (21.1) 1.48 (37.6) 0.31 (7.9) 2.17 (55.1) 0.16 (4.1) 78 1/2-13 32, 40 0.63 (16.0) 0.83 (21.1) 1.48 (37.6) 0.31 (7.9) 2.17 (55.1) 0.16 (4.1) 78 M8 20, 25, 32, 40, 50, 63, 80 0.63 (16.0) 0.83 (21.1) 1.48 (37.6) 0.31 (7.9) 2.17 (55.1) 0.16 (4.1) 78 M10 20, 25, 32, 40, 50, 63, 80 0.63 (16.0) 0.83 (21.1) 1.48 (37.6) 0.31 (7.9) 2.17 (55.1) 0.16 (4.1) Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - JW Winco: GN 303.2 adjustable levers with push button, threaded stud: l1, thread, l2, d2, d3, h1 to h4 (stroke) — web — Publisher's page; dimensions are facts — https://www.jwwinco.mx/en-us/products/2.1-Clamping-assembly-onoff-switching-via-levers/Adjustable-hand-levers-tension-levers/GN-303.2-Zinc-Die-Cast-Adjustable-Levers-Threaded-Stud-Type-with-Zinc-Plated-Steel-Components-with-Push-Button No true-size file yet: the published figures do not fix the whole shape; a measured scan is planned. API: https://xemstudio.com/api/geometry?object=push-button-clamping-levers-gn-303-2