Fastener Manufacturing & Thread Rolling calculator
Point Forming Time Calculator
Pointing — forming a gimlet, dog or chamfer point on screws and self-drilling fasteners — is a discrete secondary operation with its own dedicated rate, and its hours have to be scheduled separately from thread rolling and heading. This calculator divides the piece count by your proven point-forming rate to get base machine time, then adds a percentage allowance for setup, die changes and in-process checks. Production planners, scheduling leads and estimators use it to load the pointing machines, quote secondary-op time and commit realistic ship dates. Skipping the allowance is the classic way a job that looks like a clean 5 hours blows past its slot.
What this calculator does
- Estimate pointing or point-forming hours from fastener quantity, proven pointer rate, and allowance for setup and checks.
- Use it when scheduling drill points, dog points, cone points, gimlet points, chamfers, or other secondary point forming operations.
- It computes the machine hours to point-form a fastener lot, adding a setup and inspection allowance to the base run time.
Formula used
- Base point forming time = fasteners requiring point forming ÷ proven point-forming rate
- Adjusted point forming time = base time × allowance factor
Inputs explained
- Fasteners requiring point forming:
- Proven point-forming rate:
- Pointing allowance for setup and checks:
How to use the result
- Use it when scheduling pointing machines, quoting a secondary point-forming operation, or estimating capacity for self-drilling or gimlet-point fasteners.
- It assumes a single steady proven rate; multi-cavity changes, material hardness swings or tool wear that slows the line mid-run aren't captured by one allowance.
Current U.S. benchmarks
- The producer price index for steel mill products stands at 348.53 (BLS, May 2026), up 6.7% from a year earlier. Quotes priced off last quarter's material cost miss this move.
Common questions
- How do you calculate point forming time? Divide pieces requiring point forming by the proven point-forming rate for base time, then multiply by one plus the allowance. The example: 30,000 / 6,000 = 5 base hours, times a 15% allowance gives 5.75 adjusted hours.
- What is a point-forming allowance and why add it? It's a percentage uplift covering die setup, changeovers and in-process gauge checks that the raw run rate ignores. A 15% allowance turns 5 clean hours into 5.75 realistic scheduled hours.
- What is a typical point-forming rate for fasteners? It depends on size, point style and machine, but dedicated pointers commonly run thousands of pieces per hour. The 6,000 pieces/hr in the example is a reasonable proven rate for a mid-size point-forming operation.
- How do I find my proven point-forming rate? Time a real run net of stoppages: pieces produced divided by actual run hours. Use a proven shop-floor number, not the machine nameplate, so the estimate reflects your tooling and material.
- Should setup time be a percentage or a fixed block? This calculator uses a percentage, which scales with run length. For very short runs a fixed setup block is more accurate, since a 15% allowance on a tiny run won't cover a full die change — verify the allowance covers your actual changeover.
Last reviewed 2026-05-12.