ASME B18.6.3 Slotted Oval Countersunk Head Screws

Dimensions of ASME B18.6.3 Slotted Oval Countersunk Head Screws

Nominal Size or Basic Screw DiameterMachine Screw Length, LThese Lengths or Shorter are UndercutHead Diameter, AHead Side Height, HHead Crown Height, CTotal Head Height, OSlot Width, JSlot Depth, TProtrusion Above Gaging Diameter, FGaging Diameter, G
Type A & AB Tapping ScrewsOther Tyoes of Tapping ScrewsMaxMinMaxMinMaxMinMaxMin
0–––0.0870.0800.0280.0140.0420.0170.0100.0230.016–––
01/83/161/80.1120.0960.0350.0210.0560.0230.0160.0300.0250.0470.0310.078
11/83/165/320.1370.1200.0430.0250.0680.0260.0190.0380.0310.0530.0350.101
21/83/163/160.1620.1440.0510.0290.0800.0310.0230.0450.0370.0580.0390.124
31/87/327/320.1870.1670.0590.0330.0920.0350.0270.0520.0430.0640.0440.148
43/161/41/40.2120.1910.0670.0370.1040.0390.0310.0590.0490.0690.0480.172
53/161/41/40.2370.2150.0750.0410.1160.0430.0350.0670.0550.0750.0530.196
63/165/165/160.2620.2380.0830.0450.1280.0480.0390.0740.0600.0800.0570.220
7–3/83/80.2870.2620.0910.0490.1400.0480.0390.0810.0660.0850.0620.243
81/47/167/160.3120.2850.1000.0520.1520.0540.0450.0880.0720.0910.0660.267
105/161/21/20.3620.3330.1160.0600.1760.0600.0500.1030.0840.1020.0750.313
123/89/169/160.3410.3800.1320.0680.2000.0670.0560.1170.0960.1130.0840.362
14–5/8–0.4620.4270.1480.0760.2240.0750.0640.1320.1080.1250.0930.410
1/47/165/85/80.4770.4420.1530.0790.2320.0750.0640.1360.1120.1290.0950.424
16–3/4–0.5120.4750.1640.0840.2480.0750.0640.1460.1200.1360.1020.457
18–13/16–0.5610.5220.1800.0920.2720.0840.0720.1600.1320.1470.1110.505
5/161/213/165/80.5970.5560.1910.0990.2900.0840.0720.1710.1410.1550.1170.539
20–13/16–0.6110.5690.1960.1000.2960.0840.0720.1750.1440.1580.1200.553
24–1–0.7110.6640.2280.1160.3440.0940.0810.2040.1680.1810.1380.648
3/89/16–5/80.7170.6700.2300.1170.3470.0940.0810.2060.1700.1820.1390.653
7/165/8–3/40.7600.7150.2230.1220.3450.0940.0810.2100.1740.1950.1500.690
1/23/4–3/40.8150.7650.2230.1310.3540.1060.0910.2160.1760.2120.1630.739
9/16–––0.9320.8780.2600.1500.4100.1180.1020.2500.2070.2390.1840.851
5/8–––1.0500.9900.2980.1690.4670.1330.1160.2850.2350.2660.2060.962
3/4–––1.2851.2150.3720.2060.5780.1490.1310.3530.2930.3180.2401.186