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Samutprakarn 10540, Thailand Tel. : +66(0) 2312 6159-65 Fax. : +66(0) 2312 6166 Bangkok Fastening Co., Ltd. 99/4 Moo 7 Bangna - Trad Road, Bangchalong, Bangplee, HEXAGON NUTS Standard JIS B1181 Hardness 71.0 - 99.5 HRB Surface Treatment Black Oxide , Blue Zinc Cr 3+ Plain Yellow Zinc Cr 6+ Strength Class 4.8 Code 3OW Brand BFC Threads per Inch (WT) 3/16" 24 8 4.5 10 5 11 5.7 18 12.7 18 14 3/8" 16 17 8 7/16" 14 19 9 1/2" 12 21 10 5/8" 11 26 13 3/4" 10 32 16.9 S e z i S d a e r h T d max m max 1/4" 20 7 " 6 1 / 5 , , BANGKOK FASTENING CO., LTD
