End Patterns
On staggered pattern perforations, the end patterns will either be "finished" or "unfinished" depending on the tooling available. An unfurnished end pattern is Standard; however, a finished end is available as a non-standard item. Consult Ametco for details.

"Unfinished" end patterns are standard on some staggered pattern perforations, meaning the hole pattern appears incomplete at the end of the sheet.

"Finished" end patterns are non-standard on most staggered pattern perforations, meaning the hole pattern is complete at the end of the sheet. (Refer to Perforating Standards for details)

End Patterns

Margins
The "margin" on a perforated sheet or plate refers to the distance from the edge of the sheet to the first perforation along the same dimension. "No margin" refers to the last row or set of perforations extending off the sheet or plate.

Minimum Margins

Minimum Margins
Perforated stock size sheet or plate with minimum margins

Specified Margins

Specified Margins
Sheet or plate resheared after perforating with margins specified

Staggered Patterns

Round - standard

Round - Standard


Square - Standard

Square - Standard


Slotted - End Stagger

Slotted - End Stagger


Slotted - Side Stagger

Slotted - Side Stagger

Straight Line Patterns

Round - Optional

Round - Optional


Square

Square


Slotted

Slotted


45 Degree Pattern

Round - Optional

Round - Optional



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