FRANTZ^® Sterling^® Steel Ball division has been manufacturing carbon steel balls since 1947 and is distinguished for its high tech manufacturing and inspection processes. FRANTZ engineers have developed and patented a heat treating process that provides strong anti-corrosive protection for carbon steel balls. Sterling Armor® has provided our customers with a lower cost alternative to stainless steel balls for applications where the product is exposed to the elements. Click for more information on Sterling Armor^®.

Our Sterling Armor^® Steel Ball product offering includes the following sizes:

Fractional		Decimal		mm
3/16		0.1875		4.76
13/64		0.2031		5.16
7/32		0.2188		5.56
15/64		0.2344		5.95
1/4		0.2500		6.35
17/64		0.2656		6.75
9/32		0.2813		7.14
19/64		0.2969		7.54
5/16		0.3125		7.94
21/64		0.3281		8.33
11/32		0.3438		8.73
23/64		0.3594		9.13
3/8		0.3750		9.53
25/64		0.3906		9.92
13/32		0.4063		10.32
27/64		0.4219		10.72
7/16		0.4375		11.11
29/64		0.4531		11.51
15/32		0.4688		11.91
31/64		0.4844		12.30
1/2		0.5000		12.70
33/64		0.5156		13.10
17/32		0.5313		13.49
35/64		0.5469		13.89
9/16		0.5625		14.29

Minimum lot sizes apply. Contact our Customer Service representatives for additional size and feature options.

Sterling Armor® Balls by FRANTZ^® Sterling^® Steel Ball. Simply better.