Description
94239A106 HIGH-STRENGTH FLANGE HEX HEAD ZINC 5 1/16-18 3/4" LONG (10PCS) NEW OLD STOCK LOT 32173 E21B Head Type Hex Screw Features Flanged Drive Style External Hex System of Measurement Inch Thread Direction Right Hand Thread Size 5/16 "-18 Screw Size Decimal Equivalent 0.3125" Thread Type UNC Thread Fit Class 2A Length 3/4 " Threading Fully Threaded Thread Spacing Coarse Head Width 1/2 " Height 21/64 " Flange Diameter 11/16 " Fastener Strength Grade/Class Grade 8 Material Zinc-Plated Steel Tensile Strength 150,000 psi Hardness Rockwell C33 Specifications Met IFI 111; SAE J429 RoHS RoHS 3 (2015/863/EU) Compliant REACH REACH (EC 1907/2006) (01/16/2020, 205 SVHC) Compliant DFARS Specialty Metals COTS-Exempt Country of Origin Peoples Republic of China or Taiwan Schedule B 731815.9000 ECCN EAR99 About 20% stronger than medium-strength steel screws, these Grade 8 steel screws can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. Serrations under the head grip the material surface for mild vibration resistance, and the flange distributes pressure where the screw meets the surface, eliminating the need for a separate washer. Material meets SAE J429 specifications for quality. Dimensions meet IFI 111 specifications. Grade 8 steel hex head screws are marked with six radial lines. Head height includes the flange. Length is measured from under the flange. Zinc-plated and zinc yellow-chromate plated steel screws are corrosion resistant in wet environments.