Key Inserts – Thinwall, Stainless Steel (Metric)

Threaded Inserts

Product Information

Key Inserts – Thinwall, Stainless Steel (Metric)

Thinwall Key Inserts have a smaller OD thread size than standard heavy-duty inserts, ideal for tight spaces where less pull-out strength is acceptable. Key Inserts are ideal for thread reinforcement, especially when the mating stud or bolt will be removed frequently. These stainless inserts provide strong, permanent stainless steel threads in any parent material, ferrous, non-ferrous, or non-metallic. Key Inserts are also well suited for quick repair of stripped, damaged, or worn threads. Locking keys positively prevent the insert from rotating.

Thinwall stainless steel Key Inserts are available in a wide range of inch and metric ID thread sizes. The following metric sizes are shown on this page:

M5 to M12 Metric Course

M8x1 to M12x1.25 Metric Fine

Key Inserts are installed using standard drills and taps, but the required tap-drill size is slightly larger than normal for that OD thread size. See Installation Data table below for the appropriate tap-drill size.

Application Information

Installation/Removal

Key Inserts are installed using standard drills and taps, but the required tap-drill size is slightly larger than normal for that OD thread size. See Installation Data table below for the appropriate tap-drill size. Locking keys must be driven down into the parent material during installation, providing a positive mechanical lock against rotation. See tables below for installation tools.

Click here for detailed Installation & Removal Instructions

INSTALLATION DATA
PART NO.	REQUIRED TAP DRILL	COUNTERSINK DIA	MINIMUM THREAD DEPTH	STANDARD TAP
CLM-58-SKS	6.9mm or I	.32	.36	M8
CLM-61-SKS	8.8mm or S	.40	.45	M10x1.25
CLM-8125-SKS	27/64	.48	.54	M12x1.25
CLM-81-SKS	27/64	.48	.54	M12x1.25
CLM-1015-SKS	1/2	.56	.62	M14x1.5
CLM-10125-SKS	1/2	.56	.62	M14x1.5
CLM-12175-SKS	37/64	.63	.69	M16x1.5
CLM-12125-SKS	37/64	.63	.69	M16x1.5

REMOVAL DATA
PART NO.	REMOVAL DRILL SIZE	REMOVAL DRILL DEPTH
CLM-58-SKS	5.5mm or 7/32	5/32
CLM-61-SKS	7.5mm or 19/64	3/16
CLM-8125-SKS	3/8	3/16
CLM-81-SKS	3/8	3/16
CLM-1015-SKS	29/64	3/16
CLM-10125-SKS	29/64	3/16
CLM-12175-SKS	17/32	3/16
CLM-12125-SKS	17/32	3/16

Material

ITEM	MATERIAL	HEAT TREAT	FINISH	RoHS
Body	303 Stainless Steel	-	-	✔
Keys	302 Stainless Steel	-	-	✔

Click here for detailed material and finish specifications.

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Key Inserts – Thinwall, Stainless Steel (Metric)

Key Insert

PART NO.	INTERNAL THREAD	INTERNAL THREAD PITCH (mm)	EXTERNAL THREAD	EXTERNAL THREAD PITCH (mm)	LENGTH (mm)	SHEAR ENGAGEMENT AREA (sq mm)
CLM-58-SKS	M5	.8	M8	1.25	8	105
CLM-61-SKS	M6	1	M10x1.25	1.25	10	177
CLM-8125-SKS	M8	1.25	M12x1.25	1.25	12	266
CLM-1015-SKS	M10	1.5	M14x1.5	1.5	14	342
CLM-12175-SKS	M12	1.75	M16x1.5	1.5	16	470