1/2" Shoulder x 1-1/2" Shoulder Length x 3/8"-16 316 Stainless Steel Socket Shoulder Bolt / THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 0.625 INCHES NOMINAL HEAD STYLE: C33 PAN NO. 2 INTERNAL DRIVE STYLE: D5 HEXAGON END ITEM IDENTIFICATION: SLQ-60 NOMINAL THREAD DIAMETER: 0.375 INCHES THREAD QUANTITY PER INCH: 16 SPECIAL FEATURES: SHOULDER DIA IS 0.500 INCHES (NOM) AND 1.500 INCHES (NOM) LONG;HEAD IS KNURLED MATERIAL: STEEL COMP 316 OVERALL