SKU : SW005
หมวดหมู่ : สกรูเหล็กสกรูอื่นๆ (Screw) , 
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D (DIAMETER) | 1/4 | 5/16 | 3/8 | 7/16 | 1/2 | 9/16 |
P (PICTH) NC | 20 | 18 | 16 | 14 | 13 | 12 |
P (PICTH) NF | 28 | 24 | 24 | 20 | 20 | 18 |
K (HEAD THICKNESS) | 4 | 5.2 | 6 | 7.1 | 7.9 | 9.1 |
S (WIDTH ACROSS FLAT) | 7/16 | 1/2 | 9/16 | 5/8 | 3/4 | 13/16 |
b | 19 | 22.2 | 25.4 | 28.5 | 31.7 | 34.9 |