NAAMS Steel Risers

Freer Tool & Supply’s NAAMS steel risers collection supports rigid, repeatable height spacing for welding fixtures, assembly tooling, and automation builds where strength and stability are critical. Steel risers are used to raise locating, clamping, and support components to the correct working height while maintaining a solid foundation—helping reduce deflection, improve alignment retention, and keep part location consistent through high-cycle production

NAAMS steel risers are manufactured from ASTM A-36 steel and are available in a variety of heights. Metric options include M10 x 1.5 tapped holes or 11.0 mm holes, while standard versions feature 3/8-16 tapped holes or 13/32" holes.

NAAMS Code		"A"	B Tap Holes		WT. kg
NAAMS Code		"A"	E	M	WT. kg
AAB100E	AAB100M	100.00	3/8-16 tap	M10x1.5	5.44
AAB101E	AAB101M	100.00	13/32	11.0	5.44
AAB150E	AAB150M	150.00	3/8-16 tap	M10x1.5	6.35
AAB151E	AAB151M	150.00	13/32	11.0	6.35
AAB200E	AAB200M	200.00	3/8-16 tap	M10x1.5	7.71
AAB201E	AAB201M	200.00	13/32	11.0	7.71
AAB250E	AAB250M	250.00	3/8-16 tap	M10x1.5	9.07
AAB251E	AAB251M	250.00	13/32	11.0	9.07
AAB300E	AAB300M	300.00	3/8-16 tap	M10x1.5	10.43
AAB301E	AAB301M	300.00	13/32	11.0	10.43
AAB350E	AAB350M	350.00	3/8-16 tap	M10x1.5	12.24
AAB351E	AAB351M	350.00	13/32	11.0	12.24
AAB400E	AAB400M	400.00	3/8-16 tap	M10x1.5	13.61
AAB401E	AAB401M	400.00	13/32	11.0	13.61
AHB001E	AHB001M	-	13/32	11.0	2.5
AHB002E	AHB002M	-	3/8-16 tap	M10 x 1.5	2.5
-	ARA100M	100.00	-	M10x1.5	9.2
-	ARA101M	100.00	-	11.0	9.2
-	ARA150M	150.00	-	M10x1.5	11.2
-	ARA151M	150.00	-	11.0	11.2
-	ARA200M	200.00	-	M10x1.5	13.1
-	ARA201M	200.00	-	11.0	13.1
-	ARA250M	250.00	-	M10x1.5	14.9
-	ARA251M	250.00	-	11.0	14.9
-	ARA300M	300.00	-	M10x1.5	16.1
-	ARA301M	300.00	-	11.0	16.1
-	ARA350M	350.00	-	M10x1.5	18.4
-	ARA351M	350.00	-	11.0	18.4
-	ARA400M	400.00	-	M10x1.5	19.6
-	ARA401M	400.00	-	11.0	19.6
ARA450E	ARA450M	450.00	3/8-16 tap	M10x1.5	24.5
ARA451E	ARA451M	450.00	13/32	11.0	24.5
ARA500E	ARA500M	500.00	3/8-16 tap	M10x1.5	28.1
ARA501E	ARA501M	500.00	13/32	11.0	28.1
ARA550E	ARA550M	550.00	3/8-16 tap	M10x1.5	29.5
ARA551E	ARA551M	550.00	13/32	11.0	29.5
ARA600E	ARA600M	600.00	3/8-16 tap	M10x1.5	31.7
ARA601E	ARA601M	600.00	13/32	11.0	31.7
ARA650E	ARA650M	650.00	3/8-16 tap	M10x1.5	34.5
ARA651E	ARA651M	650.00	13/32	11.0	34.5
ARA700E	ARA700M	700.00	3/8-16 tap	M10x1.5	37.2
ARA701E	ARA701M	700.00	13/32	11.0	37.2
ARA750E	ARA750M	750.00	3/8-16 tap	M10x1.5	39.0
ARA751E	ARA751M	750.00	13/32	11.0	39.0
ARA800E	ARA800M	800.00	3/8-16 tap	M10x1.5	44.4
ARA801E	ARA801M	800.00	13/32	11.0	44.4

NAAMS Code		"A"	B Tap Holes		WT. kg
NAAMS Code		"A"	E	M	WT. kg
AAB100E	AAB100M	100.00	3/8-16 tap	M10x1.5	5.44
AAB101E	AAB101M	100.00	13/32	11.0	5.44
AAB150E	AAB150M	150.00	3/8-16 tap	M10x1.5	6.35
AAB151E	AAB151M	150.00	13/32	11.0	6.35
AAB200E	AAB200M	200.00	3/8-16 tap	M10x1.5	7.71
AAB201E	AAB201M	200.00	13/32	11.0	7.71
AAB250E	AAB250M	250.00	3/8-16 tap	M10x1.5	9.07
AAB251E	AAB251M	250.00	13/32	11.0	9.07
AAB300E	AAB300M	300.00	3/8-16 tap	M10x1.5	10.43
AAB301E	AAB301M	300.00	13/32	11.0	10.43
AAB350E	AAB350M	350.00	3/8-16 tap	M10x1.5	12.24
AAB351E	AAB351M	350.00	13/32	11.0	12.24
AAB400E	AAB400M	400.00	3/8-16 tap	M10x1.5	13.61
AAB401E	AAB401M	400.00	13/32	11.0	13.61
AHB001E	AHB001M	-	13/32	11.0	2.5
AHB002E	AHB002M	-	3/8-16 tap	M10 x 1.5	2.5
-	ARA100M	100.00	-	M10x1.5	9.2
-	ARA101M	100.00	-	11.0	9.2
-	ARA150M	150.00	-	M10x1.5	11.2
-	ARA151M	150.00	-	11.0	11.2
-	ARA200M	200.00	-	M10x1.5	13.1
-	ARA201M	200.00	-	11.0	13.1
-	ARA250M	250.00	-	M10x1.5	14.9
-	ARA251M	250.00	-	11.0	14.9
-	ARA300M	300.00	-	M10x1.5	16.1
-	ARA301M	300.00	-	11.0	16.1
-	ARA350M	350.00	-	M10x1.5	18.4
-	ARA351M	350.00	-	11.0	18.4
-	ARA400M	400.00	-	M10x1.5	19.6
-	ARA401M	400.00	-	11.0	19.6
ARA450E	ARA450M	450.00	3/8-16 tap	M10x1.5	24.5
ARA451E	ARA451M	450.00	13/32	11.0	24.5
ARA500E	ARA500M	500.00	3/8-16 tap	M10x1.5	28.1
ARA501E	ARA501M	500.00	13/32	11.0	28.1
ARA550E	ARA550M	550.00	3/8-16 tap	M10x1.5	29.5
ARA551E	ARA551M	550.00	13/32	11.0	29.5
ARA600E	ARA600M	600.00	3/8-16 tap	M10x1.5	31.7
ARA601E	ARA601M	600.00	13/32	11.0	31.7
ARA650E	ARA650M	650.00	3/8-16 tap	M10x1.5	34.5
ARA651E	ARA651M	650.00	13/32	11.0	34.5
ARA700E	ARA700M	700.00	3/8-16 tap	M10x1.5	37.2
ARA701E	ARA701M	700.00	13/32	11.0	37.2
ARA750E	ARA750M	750.00	3/8-16 tap	M10x1.5	39.0
ARA751E	ARA751M	750.00	13/32	11.0	39.0
ARA800E	ARA800M	800.00	3/8-16 tap	M10x1.5	44.4
ARA801E	ARA801M	800.00	13/32	11.0	44.4