Keensert Size Charts & External Thread Sizes

Complete sizing information for all Keensert thread insert products

METRIC KEY LOCKING INSERT SIZES TAP & DRILL SIZE TABLES

NOTE: Key locking inserts such as KeenSert inserts are generally supplied as Industrial Spec. grade but can be supplied in Milspec. grade and with Certificates of Conformity on special order. Internally Locking Keyserts are also available on special order.

CAUTION

External threads on some Keensert inserts are truncated i.e. the bottom of the external thread "V" is flattened off. For this reason ALWAYS use the below specified tapping drill size and DO NOT use standard tapping drill sizes.

THINWALL METRIC INTERNAL WITH METRIC EXTERNAL

PART NUMBER		INSERT
Carbon Steel	Stainless Steel	Internal Thread 6h	External Thread(mod.) class 6g	Length	Drill Size
KE050808	KE050808SS	M5 x 0.8	M8 x 1.25	8.0	6.9mm
KE060110	KE060110SS	M6 x 1.0	M10 x 1.25	10.0	8.8mm
KE0812512	KE081251SS	M8 x 1.25	M12 x 1.25	12.0	10.8mm
KE081012	KE081012SS	M8 x 1.0	M12 x 1.25	12.0	10.8mm
KE101514	KE101514SS	M10 x 1.5	M14 x 1.5	14.0	12.8mm
KE1012514	KE1012514SS	M10 x 1.25	M14 x 1.5	14.0	12.8mm
KE1217516	KE1217516SS	M12 x 1.75	M16 x 1.5	16.0	14.75mm
KE1212516	KE1212516SS	M12 x 1.25	M16 x 1.5	16.0	14.75mm
Miniature Metric Sizes
KE020404	KE020404SS	M2 x 0.4	M4 x 0.7	3mm	3.3mm
KE02545	KE02545SS	M2.5 x 0.45	M4.5 x 0.75	3.8mm	3.7mm
KE030505	KE030505SS	M3 x 0.5	M5 x 0.8	4.2mm	4.2mm

HEAVY WALL METRIC INTERNAL WITH METRIC EXTERNAL

PART NUMBER		INSERT
Carbon Steel	Stainless Steel	Internal Thread Class 6h	External Thread Class 6g	Length	Drill Size
KE040708HD	KE040708HDSS	M4 x 0.7	M8 x 1.25	8.0	6.9mm
KE050810HD	KE050810HDSS	M5 x 0.8	M10 x 1.25	10.0	8.8mm
KE060112HD	KE060112HDSS	M6 x 1.0	M12 x 1.25	12.0	10.8mm
KE081250HD	KE081250HDSS	M8 x 1.25	M14 x 1.5	14.0	12.8mm
KE081000HD	KE081000HDSS	M8 x 1.0	M14 x 1.5	14.0	12.8mm
KE101500HD	KE101500HDSS	M10x 1.5	M16 x 1.5	16.0	14.75mm
KE101250HD	KE101250HDSS	M10 x 1.25	M16 x 1.5	16.0	14.75mm
KE121750HD	KE121750HDSS	M12 x 1.75	M18 x 1.5	18.0	16.75mm
KE121250HD	KE121250HDSS	M12 x 1.25	M18 x 1.5	18.0	16.75mm
KE142000HD	KE142000HDSS	M14 x 2.0	M20 x 1.5	20.0	18.75mm
KE141500HD	KE141500HDSS	M14 x 1.5	M20 x 1.5	20.0	18.75mm
KE162000HD	KE162000HDSS	M16 x 2.0	M22 x 1.5	22.0	20.5mm
KE161500HD	KE161500HDSS	M16 x 1.5	M22 x 1.5	22.0	20.5mm
KE181500HD	KE181500HDSS	M18 x 1.5	M24 x 1.5	24.0	22.5mm
KE202500HD	KE202500HDSS	M20 x 2.5	M30 x 2.0	30.0	28mm
KE201500HD	KE201500HDSS	M20 x 1.5	M30 x 2.0	30.0	28mm
KE221500HD	KE221500HDSS	M22 x 1.5	M32 x 2.0	32.0	30mm
KE243000HD	KE243000HDSS	M24 x 3.0	M33 x 2.0	33.0	31mm
KE242000HD	KE242000HDSS	M24 x 2.0	M33 x 2.0	33.0	31mm

Inch Key Locking Insert Sizes Tap & Drill Size Tables

THINWALL INCH INTERNAL WITH INCH EXTERNAL

PART NUMBER		INSERT
Carbon Steel	Stainless Steel	Internal Thread Class 2B	External Thread(mod.) Class 2A	Length	Drill Size
KETH102400	KETH102400SS	10-24	5/16	.31	Letter I - 0.272"
KETH103200	KETH103200SS	10-32	5/16	.31	Letter I - 0.272"
KETH142000	KETH142000SS	1/4-20	3/8-16	.37	Letter Q-0.332"
KETH142800	KETH142800SS	1/4-28	3/8-16	.37	Letter Q-0.332"
KETH516180	KETH516180SS	5/16-18	7/16-14	.43	Letter X-0.397"
KETH516240	KETH516240SS	5/16-24	7/16-14	.43	Letter X-0.397"
KETH381600	KETH381600SS	3/8-16	1/2-13	.50	29/64"
KETH382400	KETH382400SS	3/8-24	1/2-13	.50	29/64"
KETH716140	KETH716140SS	7/16-14	9/16-12	.56	33/64"
KETH716200	KETH716200SS	7/16-20	9/16-12	.56	33/64"
KETH121300	KETH121300SS	1/2-13	5/8-11	.62	37/64"
KETH122000	KETH122000SS	1/2-20	5/8-11	.62	37/64"

HEAVY WALL INCH INTERNAL WITH INCH EXTERNAL

PART NUMBER		INSERT
Carbon Steel	Stainless Steel	Internal Thread Class 2B	External Thread(Mod.) class 2A	Length	Drill Size
KEHD083200	KEHD0832SS	8-32	5/16-18	.31	Letter I - 0.272"
KEHD102400	KEHD1024SS	10-24	3/8-16	.31	Letter Q - 0.332"
KEHD103200	KEHD1032SS	10-32	3/8-16	.31	Letter Q - 0.332"
KEHD142000	KEHD1420SS	1/4-20	7/16-14	.37	Letter X - 0.397"
KEHD142800	KEHD1428SS	1/4-28	7/16-14	.37	Letter X - 0.397"
KEHD516180	KEHD516180SS	5/16-18	1/2-13	.43	29/64"
KEHD516240	KEHD516240SS	5/16-24	1/2-13	.43	29/64"
KEHD381600	KEHD3816SS	3/8-16	9/16-12	.50	33/64"
KEHD382400	KEHD3824SS	3/8-24	9/16-12	.50	33/64"
KEHD716140	KEHD716140SS	7/16-14	5/8-11	.62	37/64"
KEHD716200	KEHD716200SS	7/16-20	5/8-11	.62	37/64"
KEHD121300	KEHD1213SS	1/2-13	3/4-16	.62	45/64"
KEHD122000	KEHD1220SS	1/2-20	3/4-16	.62	45/64"
KEHD916120	KEHD916120SS	9/16-12	3/4-16	.81	45/64"
KEHD916180	KEHD916180SS	9/16-18	3/4-16	.81	45/64"
KEHD581100	KEHD581100SS	5/8-11	7/8-14	.87	53/64"
KEHD581800	KEHD581800SS	5/8-18	7/8-14	.87	53/64"
KEHD341000	KEHD341000SS	3/4-10	1-1/8-12	1.12	1-1/16"
KEHD341600	KEHD341600SS	3/4-16	1-1/8-12	1.12	1-1/16"
KEHD780900	KEHD780900SS	7/8-9	1-1/4-12	1.25	1-5/16"
KEHD781400	KEHD781400SS	7/8-14	1-1/4-12	1.25	1-5/16"
KEHD100800	KEHD100800SS	1"-8	1-3/8-12	1.37	1-5/16"
KEHD101200	KEHD101200SS	1"-12	1-3/8-12	1.37	1-5/16"
KEHD101400	--------	1"14	1-1/2-12	1.62	1-13/32"
KEHD118070	--------	1-1/8-7	1-1/2-12	1.62	1-13/32"
KEHD118120	--------	1-1/8-12	1-5/8-12	1.81	1-9/16"
KEHD114070	--------	1-1/4-7	1-5/8-12	1.81	1-9/16"
KEHD114120	--------	1-1/4-12	1-7/8-12	2.00	1-13/16"
KEHD112060	--------	1-1/2-6	1-7/8-12	2.00	1-13/16"
KEHD112120	--------	1-1/2-12	1-7/8-12	2.00	1-13/16"

EXTRA HEAVY WALL INCH INTERNAL WITH INCH EXTERNAL

PART NUMBER		INSERT
Carbon Steel	Stainless Steel	Internal Thread Class 2B	External Thread(Mod.) class 2A	Length	Drill Size
KEXHD063200	KEXHD063200SS	6-32	5/16-18	.31	Letter I - 0.272"
KEXHD083200	KEXHD083200SS	8-32	3/8-16	.31	Letter Q - 0.332"
KEXHD102400	KEXHD102400SS	10-24	7/16-14	.31	Letter X - 0.397"
KEXHD103200	KEXHD103200SS	10-32	7/16-14	.31	Letter X - 0.397"
KEXHD142000	KEXHD142000SS	1/4-20	1/2-13	.37	29/64"
KEXHD142800	KEXHD142800SS	1/4-28	1/2-13	.37	29/64"
KEXHD516180	KEXHD516180SS	5/16-18	9/16-12	.43	33/64"
KEXHD516240	KEXHD516240SS	5/16-24	9/16-12	.43	33/64"
KEXHD381600	KEXHD381600SS	3/8-16	5/8-11	.50	37/64"
KEXHD382400	KEXHD382400SS	3/8-24	5/8-11	.50	37/64"
KEXHD716140	KEXHD716140SS	7/16-14	3/4-16	.62	45/64"
KEXHD716200	KEXHD716200SS	7/16-20	3/4-16	.62	45/64"
KEXHD121300	KEXHD121300SS	1/2-13	7/8-14	.68	53/64"
KEXHD122000	KEXHD122000SS	1/2-20	7/8-14	.68	53/64"
KEXHD916120	KEXHD916120SS	9/16-12	7/8-14	.81	53/64"
KEXHD916180	KEXHD916180SS	9/16-18	7/8-14	.81	53/64"
KEXHD581100	KEXHD581100SS	5/8-11	1"-12	.87	59/64"
KEXHD581800	KEXHD581800SS	5/8-18	1"-12	.87	59/64"
KEXHD341000	KEXHD341000SS	3/4-10	1-1/4-12	1.12	1-3/16"
KEXHD341600	KEXHD341600SS	3/4-16	1-1/4-12	1.12	1-3/16"
KEXHD780900	KEXHD780900SS	7/8-9	1-3/8-12	1.25	1-5/16"
KEXHD781400	KEXHD781400SS	7/8-14	1-3/8-12	1.25	1-5/16"
KEXHD100800	KEXHD100800SS	1"-8	1-1/2-12	1.37	1-13/32"
KEXHD101200	KEXHD101200SS	1"-12	1-1/2-12	1.37	1-13/32"

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