เกลียวตลอด ASTM A193

D (DIAMETER) 1/2 5/8 3/4 7/8 1” 1.1/8 1.1/4 1.3/8 1.1/2 1.5/8 1.7/8
P (PICTH) 13 11 10 9 8 8 8 8 8 8 8
M (HEAD THICKNESS) 31/64 39/64 41/64 55/64 63/64 1.7/64 1.7/32 1.11/32 1.15/32 1.19/32 1.21/32
B (WIDTH ACROSS FLAT) 7/8 1.1/16 1.1/4 1.7/16 1.5/8 1.13/16 2” 2.3/16 2.3/8 2.9/16   2.15/16
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