Spiral Point Tap 5/16 -18 HSS MPN:357249

UN coarse (UNC) taps have fewer threads per inch than UN fine (UNF) taps. Compared to UNF taps, UNC taps perform better in threading applications on brittle materials and are less likely to cross thread. Coarse threads can also withstand more physical abuse than fine threads. The bright finish on these taps provides a smooth, polished surface.

Technical Specifications

• Item Spiral Point Tap
• Thread Size 5/16"-18
• Thread Standard UNC
• Tap Material High Speed Steel
• Tap Finish Bright (Uncoated)
• Thread Length 11/16 in
• Overall Length 2 23/32 in
• 75% Thread Drill Size F
• Thread Limit H1
• Class of Fit 2B
• Thread Direction Right Hand
• Number of Flutes 2
• Primary Material Application All Materials
• 55% Thread Drill Size I
• 65% Thread Drill Size 17/64 in
• Drill Bit Size F
• Extended Neck Yes
• Measurement System Fractional Inch
• Primary Material Application ISO Code N, P
• Series SPGP
• Shank Dia. 5/32 in
• Shank Length 1 19/32 in
• Shank Type - Machining Straight
• Spiral Direction Neutral
• Square Size 0.2380 in
• Standards USCTI Table 302A
• Tap Chamfer Plug
• Tap Grouping Individual
• Tap Thread Size 5/16"-18
• Threads per Inch 18
• Thread Limit / Class of Fit H1 / 2B

Manufacturer Details

• Manufacturer: Greenfield Threading
• Condensed Mfg Number: 357249
• MPN: 357249

Label Details

• Hazardous Material: N
• Green Material Flag: N
• Country of Origin: US
• CA Prop 65 Wht Label: N

Classification Details

• Harmonization Code: 8207403000
• GDS Category Name: Spiral Point Taps
• GDS Family Name: Threading
• GDS Segment Name: Machining
• UNSPSC: 23153305
• UNSPSC Class ID: 33
• UNSPSC Commodity Name: Cutting tools
• UNSPSC Commodity ID: 05
• UNSPSC Commodity Name: Taps or dies
• UNSPSC Family ID: 15
• UNSPSC Family Name: Industrial process machinery and equipment and supplies
• UNSPSC Segment ID: 23
• UNSPSC Segment Name: Industrial Manufacturing and Processing Machinery and Accessories

Shipping Details

• Not For Sale In: HI AK PR