Nitro #40 roller chain with SK1 attachment every 4th pitch (2.000"). Our #40 attachment roller chain is manufactured using high grade carbon steel, which is shot peened and heat treated for increased durability & longevity. SK1 attachment roller chain has two straight tabs (One each side of chain) with one hole. Perfect for mounting crossbars, buckets, pins and much more.
Inner Width (b1):0.312''
Roller Diameter (d1):0.312''
Overall Width (L):0.653''
Pin Diameter (d2):0.156''
Link Plate Height (h2):0.469''
Link Plate Thickness (T):0.060''
Tab Width (G):0.375''
Height To Hole (C):0.500''
Height To Tab Top (F):0.750''
Attachment Hole Diameter (d4):0.133"
Attachment Spacing (S):2.000''
Average Tensile Strength:4,079 lbs
Max Working Load:816 lbs
No. Of Pitches/Links Per 10 Feet:240
No. Of Connecting Links Included:1
Chain Material:Carbon/Alloy Steel
ANSI Chain Size:40
Product Care & Maintenance
Maintenance and lubrication is crucial in the overall performance and life span of roller chain. Proper lubrication will reduce abrasion, chain wear, friction, noise and keep chains running cooler at higher RPM's. You can download the Nitro Roller Chain Care below.