Click to expand Tap to zoom JT21 LIGHT DUTY STAPLES 3/8'' by ARROW Sold out $3.75 | / SKU 93494 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Sold out For use in Arrow JT21M, JT21CM, T27, Master Mechanic M2100, staple guns. For screening repair, upholstery, shelf & closet lining, cornice covering. 7/16" crown width. Flat crown.