Qualfast: 1/2 BSW X 1.1/2 Skt Countesunk Head Scew (GR-10.9) High Grade Alloy Steel to BS EN ISO 898/1 Grade 10.9. Suitable for all high tensile applications. Maximum operating temperature (unplated): 300C. For applications that require a flush finished surface. Precisely controlled countersink angle allows maximum flushness and sidewall contact. Dimensions to BS 2470 - DIN 7991 MPN: 07600.127.038 EAN: 5036140312647 1/2 BSW X 1.1/2 Skt Countesunk Head Scew (GR-10.9) Attributes: Box Quantity: Driving Features: Hexagon Socket Grade: 10.9 Head Shape: Countersunk Leading Standard: BS 2470 DIN 7991 Length: 1-1/2in Material: Steel Surface Treatment: Plain Thread: BSW Thread Direction: Right Hand Thread Size: 1/2