Material: stainless steel, carbon steel, alloy steel, brass, and so on Standard: DIN7504 Color: zinc, black oxide, gray, white zinc, HDG, ruspert nickel, and so on Head Type: Pan framing head Recess: Phillips Drive, Square Drive Thread: full thread, partial thread, metric thread Drive: Philips, Pozi, socket, hex, square, slotted, combined Size: 6# -20X3/8~~7# -19X1/2'' Certification: ISO9001 ...
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