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  • High Quality Mesh & Wire Cloth

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Pattern Formations

Staggered Perforations, both round and square - direction of the stagger will normally be the short dimension of the perforated sheet metal, as illustrated below. Straight row of holes is normally parallel to long dimension of sheet.

Slotted Perforations - the long dimension of the slots can be furnished parallel with either the width or length of the sheet in most cases.

Unfinished End Pattern is standard in the industry.

Margins

Perforated Stock Size Sheets -the long sides of the sheet will be supplied with minimum margins. The short sides of the sheet will have either minimum margins or no margins (See illustration above).

Sheets Re-sheared After Perforating -special margins are available to specifications but they must carry a tolerance within the limits of the perforating tool

Definitions

QUANTITY

State the number of perforated pieces, blanks, full sheets or lineal feet or coil required.

THICKNESS

Specify in gauge numbers or in decimal inches.

MATERIAL


State kind of metal or plastic required.

WIDTH & LENGTH


Unless otherwise specified, the length will be the long dimension of the sheet.

SIZE OF HOLE


Specify the size in inches.

SHAPE OF HOLE

Round, Hexagonal, Slot, etc...

PATTERN OF PERFORATION

Specify "staggered" or "straight line". Normally the straight row of a staggered pattern will run the long dimension of the sheet.

SPACING OF PERFORATION


Spacing described on the previous page is standard.

MARGINS


If margins are not important, specify "minimum" or "no margins". If margins are desired, state the margin required for each of the four sides of the sheet.

SLOTTED PERFORATION


Specify whether the long dimension of the slot is parallel to the long or the short dimension of the sheet or plate.

FLATNESS


Mill standard unless specified.