Sampheng wholesale · every size in one place
Safety pins, size 000–7
Nickel-plated spring steel, point safely capped — every size from tiny 000 to jumbo 7. Wholesale by the box, or split by dozen/gross. Tap a size to ask price on LINE.
All sizes 000–7
Counted, not weighed
Dozen / gross / box
Tax invoice available
Pick your size
Pin drawings are to scale across sizes (approx. ±2–3 mm)
Deep-dive by size (specs, uses, FAQ):
Size 000Size 00Size 0Size 1Size 2Size 3Size 4Size 5Size 6Size 7
Race pins
Tag pins
Diaper pins
Size-choosing guide
Safety pin size chart
Length measured cap-to-coil — Thai/Chinese market standard (slightly different from US sizing)
| Size | Length (mm) | Length (cm) | Inches | Per box (typical) | Also called |
|---|---|---|---|---|---|
| 000 | 19 | 1.9 | 3/4" | 720–1,500 | Tiny, 3/0 |
| 00 | 23 | 2.3 | 7/8" | 864–1,440 | 2/0 |
| 0 | 28 | 2.8 | 1-1/16" | 864–1,728 | — |
| 1 | 32 | 3.2 | 1-1/4" | 864 | — |
| 2 | 38 | 3.8 | 1-1/2" | 864 | Race-bib size |
| 3 | 46 | 4.6 | 1-13/16" | 408–432 | — |
| 4 | 56 | 5.6 | 2-1/4" | 432 | Blanket / diaper pin |
| 5 | 65 | 6.5 | 2-1/2" | 216 | — |
| 6 | 75 | 7.5 | 3" | 144 | — |
| 7 | 85 | 8.5 | 3-1/4" | 144 | Jumbo pin |
Wholesale units
1 bunch = 1 dozen12 pins strung together — retail-friendly
1 gross144 pins = 12 dozen — popular middle unit
Full box6–10 gross per box (864–1,440 pins) — best price
Running a race — how many boxes?
Race bibs take four #2 pins per runner — enter your headcount
Specifications
MaterialSpring carbon steel, nickel plated — silver only, every size. Sharp, hard, rust-resistant.
PointSharp, fabric-friendly, safely hidden in the cap
SpringTight coil spring that keeps its snap — stays locked
FAQ
Which size is smallest / largest?
000 is the smallest (~1.9 cm) and 7 the largest (~8.5 cm).
Which size for race bibs?
Size 2 (38 mm), four pins per runner — order by the box for events.
Which size for diapers?
Size 4 (56 mm), a.k.a. blanket/diaper pins — or plastic-head locking pins for extra safety.
Which size for price tags?
000 or 00 — small enough for hang tags; the garment-trade standard.
How many in a gross? What is 2/0?
A gross is 144 pins (12 dozen). 2/0 = size 00 and 3/0 = size 000 — same sizes, different notation.
Do silver pins rust? Are they stainless?
Nickel-plated spring steel (not true stainless) — rust-resistant when kept dry; avoid prolonged moisture.
How is pin length measured?
Cap-to-coil overall length — approximate; makers vary by ±2–3 mm.
Minimum order?
From a dozen bunch to full boxes — bigger orders get better rates. LINE us the size and quantity.
Need a special spec or standing bulk orders? Message us on LINE — plenty more in-store at Sampheng.