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Amazon.com: Bolt Base 4mm A2 Stainless Steel Countersunk Csk Hex Head Socket Screw Allen Bolts M4 X 14-100 : Industrial & Scientific
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Amazon.com: Allstar Performance ALL18632 1/4" x 1" Countersunk Bolt Kit with 1" OD Washer, (Set of 10) : Everything Else
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