Brass Fasteners vs. Prong Paper Fasteners
Comparing 2 standards across 12 specifications. 12 key differences identified.
Brass Fasteners (also known as Paper Brads or Split Pins) are malleable metal binding pins featuring a round domed head and two flexible flat prongs. Sized from 0.5 inches (13 mm) to 2.0 inches (51 mm), they are passed through punched holes and spread flat against the back of the document, serving as the industry standard for Hollywood film screenplay binding.
Two-Prong Metal Paper Fasteners (standardized with a 2.75-inch / 69.85 mm center-to-center prong spacing) are heavy-gauge tin-plated steel compressors used with self-adhesive prong bases inside classification folders, legal case files, and medical patient charts to secure up to 500 hole-punched sheets.
Specification Comparison Table
12 Parameters| Parameter / Spec | ||
|---|---|---|
|
Shank Length 1/2 in (No. 1)
|
13 mm — capacity approx. 30 to 40 sheets | — |
|
Shank Length 3/4 in (No. 2)
|
19 mm — capacity approx. 50 to 75 sheets | — |
|
Shank Length 1.0 in (No. 3)
|
25 mm — capacity approx. 80 to 110 sheets | — |
|
Shank Length 1.5 in (No. 5)
|
38 mm — capacity approx. 120 to 175 sheets (Standard 1.25" Hollywood Script Brad) | — |
|
Shank Length 2.0 in (No. 7)
|
51 mm — capacity approx. 200+ sheets | — |
|
Head Diameter
|
8.0 mm (approx. 5/16 in domed brass cap) | — |
|
Hollywood Script Tradition
|
Bound with two No. 5 brass brads placed in top and bottom holes (middle hole left empty) | — |
|
Center-to-Center Prong Spacing
|
— | 2.75 in (69.85 mm standard) |
|
Standard Prong Capacities
|
— | 1.0 in (approx. 200 sheets) or 2.0 in (approx. 400 to 500 sheets) |
|
Compressor Bar Function
|
— | Slotted steel slide bar locks over prongs and folds prongs flat under tension |
|
Mounting Styles
|
— | Factory heat-bonded to pressboard folder or peel-and-stick self-adhesive base |
|
Primary Applications
|
— | Legal court exhibits, hospital medical records, mortgage closing packets, human resources personnel files |