Skip to the beginning of the images gallery

Standard Series Pipe & Tubing Polypropylene Support Clamp, Rail Mountable, Hex Head Bolts With Cover Plate, 21.3 mm mm Size

B2 1.18	Body I.D. Profiled	Brand Stauff-Special Quotes	Brand Stauff Corporation	Pack Size 1.00	UOM EA	Group 3	H1 1.42	Materials Polypropylene	Package Qty. 1	Pipe Size 0.50	Size 21.3 mm	Supplier Part Number 6100080868	Thread Sealant No	Alternate Part Numbers Alternate Part Number C1EZ57, Alternate Part Number C1MM80, Alternate Part Number SM 321, Alternate Part Number 3 PP DP-AS U W3 #K, Alternate Part Number SM-321, Alternate Part Number 3-PP-DP-AS-U-W3#K, Alternate Part Number SM-321.3-PP-DP-AS-U-W3-K, Alternate Part Number SM3213PPDPASUW3#K, Alternate Part Number SM3213PPDPASUW3K, Alternate Part Number STNA10528	Product Weight 0.22 lbs

Product Questions & Answers 2

Product Questions & Answers

what's the temp range on these polypropylene clamps? got some lines running near equipment that throws off some heat and want to make sure they won't warp or get soft on me

Question by: Hank C on Dec 3, 2025, 8:52 PM

Polypropylene tops out at 194°F on the high end and handles down to -22°F on the cold side. If your environment is pushing past that upper limit pretty regularly, the aluminum version of this same clamp series goes all the way up to 500°F, which gives you a lot more headroom near heat-generating equipment.

Answer by: Customer Support on Dec 5, 2025, 11:50 AM

i’ve got 21.3 mm tubing, is this clamp actually sized for that or am i supposed to convert it to inches first?

Question by: Kurt F on Oct 16, 2025, 12:03 PM

Measured size on this one is 21.3 mm, so it is intended to match that metric outside diameter. If you do need the inch equivalent, the note provided is mm size x 0.03937 = inch size.

Answer by: Customer Support on Oct 18, 2025, 6:04 AM

Similar Products

Model Number	Size	Tube Size	Pipe Size	Hose O.D.	Group	Materials	Body I.D.	Package Qty.	B2	H1
STNA10496	13.5 mm		0.25		2	Polypropylene	Profiled	1	1.18	1.3
STNA10503	16 mm	0.625			2	Polypropylene	Profiled	1	1.18	1.3
STNA10532	22 mm			0.866	3	Polypropylene	Profiled	1	1.18	1.42
6100080853	19 mm	0.75			3	Polypropylene	Profiled	1	1.18	1.42
6100080868	21.3 mm		0.5		3	Polypropylene	Profiled	1	1.18	1.42