METRIC CLEARANCE HOLE CHART. Metric clearance hole chart for metric bolts and screws according to ASME B18.2.8. M2 Clearance Hole : Close fit: 2.2 mm, Normal fit: 2.4 mm , Loose fit: 2.6 mm. M3 Clearance Hole : Close fit: 3.2 mm, Normal fit: 3.4 mm , Loose fit: 3.6 mm. M4 Clearance Hole : Close fit: 4.3 mm, Normal fit: 4.5 mm , Loose fit: 4.8 mm

Metric thread drill and tap chart with detailed information on tap drill sizes and thread sizes.

The tap size chart provides a list of standard size taps, specifying the diameter and thread spacing, for fractional, metric, and screw sizes. The decimal equivalents of the diameters are shown in both English and Metric units.

Nov 8, 2021 · Use the below bolt hole clearance chart for Metric size bolts and screws. This table shows how to determine the clearance hole size for a bolt. For example, an M3 bolt with a medium fit would have a 3.4 mm clearance hole.

Drill size and clearance hole recommendations. All dimensions are recommendations only and are shown in mm. Tapping sizes and clearance holes for metric and unified threads.

Recommended clearance holes and drill tap sizes. Clearance holes for metric bolts: Nominal diameters according ISO 724 - Metric Threads. Bolts, nuts and threaded rods - torque, tension and loads. Thread data - metric, unified, ACME and others. Dimensions of metric threads according ISO 724. ANSI/SO, DIN and JIS bolts.

The recommended drill and hole sizes for metric fasteners are tabulated in this table calculator

Clearance Holes and Tolerances for Metric Size Fasteners per. ASME B18.2.8-1999, R2010. The recommended drill and hole sizes for metric fasteners are tabulated in this table calculator. The minimum recommended hole is the drill size and the maximum recommended hole size is based on standard tolerances.

Use these tables for calculating the relevant size drill bit and clearance hole for ISO metric coarse and fine threads.

Sep 14, 2024 · A clearance hole is necessary to permit a fastener to pass through a material without its threads gripping into it, what size should a clearance hole be for different fasteners such as a M4 screw or a 3/8 bolt.