Techincal Information

• Proper Drill Bit Size for Drilling Pilot Holes & Shank Holes
• ASTM, SAE and ISO Grade Markings and Mechanical Properties for Hex Bolts
• Fastener Identification Marking for Nuts
• Mechanical Requirements for Stainless Steel & Non-Ferrous Fasteners
• Dimensions of Most Common Heads (Metric)
• Mechanical Properties of Fasteners (Metric)
• Mechanical Properties of Nuts (Metric)
• Tightening Torques in Kilogram Meters (Metric)
• Tap and Drill Size Chart
• Thread Terminology