This product is regulated by the following standards:

Technical data

DIN 188

Standard DIN 188

Tee-head bolts with double nib

This standard DIN 188 applies to T-head bolts with double nib, with threads M8 to M80 x 6, intended for fixing of structural components with T-slots, for instance, in accordance with DIN 649, on foundations or other constructions, where T-head bolts are considered adequate detachable fasteners.

Dimensions in mm - source DIN 188
Publication date: 02/2011 - Supersedes DIN 188: 09/2010
d thread size	M 8	M 10	M 12	M 16	M 20	M 24	M 30	M 36	M 42	M 48	M 56	M 64	M 72x6	M 80x6
P	1.25	1.5	1.75	2	2.5	3	3.5	4	4.5	5	5.5	6	-	-
b (l<=120 mm)	22	26	30	38	46	54	66	78	-	-	-	-	-	-
b (l>120 <=200 mm)	28	32	36	44	52	60	72	84	96	108	124	130	156	172
b (l>200 mm)	-	-	49	57	65	73	85	97	109	121	137	143	169	185
k nom	5.5	7	8	10.5	13	15	19	23	26	30	35	40	45	50
n nom	8	10	12	16	20	24	30	36	42	48	56	64	72	80
m nom	18	21	26	30	36	43	54	66	80	88	102	115	128	140

Din 188 2011- Approximate mass, in kg x1000 pcs, (ρ=7,85 kg/dm³) - commercial lengths
d thread size	M8	M10	M12	M16	M20	M30	M36	M42	M48	M56	M64	M72x6	M80x6
nominal length l
30	18.2	30
35	19.7	32.5
40	20.2	35	55.1
45	22.2	37.5	58.7
50	24.2	40.6	62.3	117
55	26.2	43.7	66.7	124
60	28.2	46.8	71.1	130	220
65	30.2	49.9	74.5	137	230
70	32.2	53	78.9	145	240	377
75	34.2	56.1	84.3	153	250	392
80	36.2	59.2	88.7	161	262	407
90		65.4	97.6	177	287	437	727
100		71.6	106	193	302	467	773
110			115	209	327	502	819
120			124	225	351	538	874	1380
130				241	376	583	930	1450
140				257	401	618	985	1530	2220
150				273	426	654	1040	1610	2310	3180
160				289	450	689	1090	1690	2420	3300
170					475	725	1150	1770	2530	3420
180					500	760	1200	1850	2640	3540
190					525	796	1260	1930	2750	3680
200					550	831	1310	2010	2860	3820	6800	8100	10200
220								2170	3080	4080	7300	8730	11000
240								2330	3300	4360	7800	9360	11800
260									3520	4640	8300	9900	12600
280										4920	8800	10620	13400
300											9300	11250	14200
320											9800	11900	1500
340											10300	12500	15800
360												13100	16600
380													17400
400													18200

Tee-head bolts with double nib

Dimensions in mm - source DIN 188
Publication date: 02/2011 - Supersedes DIN 188: 09/2010
d thread size	M 8	M 10	M 12	M 16	M 20	M 24	M 30	M 36	M 42	M 48	M 56	M 64	M 72x6	M 80x6
P	1.25	1.5	1.75	2	2.5	3	3.5	4	4.5	5	5.5	6	-	-
b (l<=120 mm)	22	26	30	38	46	54	66	78	-	-	-	-	-	-
b (l>120 <=200 mm)	28	32	36	44	52	60	72	84	96	108	124	130	156	172
b (l>200 mm)	-	-	49	57	65	73	85	97	109	121	137	143	169	185
k nom	5.5	7	8	10.5	13	15	19	23	26	30	35	40	45	50
n nom	8	10	12	16	20	24	30	36	42	48	56	64	72	80
m nom	18	21	26	30	36	43	54	66	80	88	102	115	128	140

Din 188 2011- Approximate mass, in kg x1000 pcs, (ρ=7,85 kg/dm³) - commercial lengths
d thread size	M8	M10	M12	M16	M20	M30	M36	M42	M48	M56	M64	M72x6	M80x6
nominal length l
30	18.2	30
35	19.7	32.5
40	20.2	35	55.1
45	22.2	37.5	58.7
50	24.2	40.6	62.3	117
55	26.2	43.7	66.7	124
60	28.2	46.8	71.1	130	220
65	30.2	49.9	74.5	137	230
70	32.2	53	78.9	145	240	377
75	34.2	56.1	84.3	153	250	392
80	36.2	59.2	88.7	161	262	407
90		65.4	97.6	177	287	437	727
100		71.6	106	193	302	467	773
110			115	209	327	502	819
120			124	225	351	538	874	1380
130				241	376	583	930	1450
140				257	401	618	985	1530	2220
150				273	426	654	1040	1610	2310	3180
160				289	450	689	1090	1690	2420	3300
170					475	725	1150	1770	2530	3420
180					500	760	1200	1850	2640	3540
190					525	796	1260	1930	2750	3680
200					550	831	1310	2010	2860	3820	6800	8100	10200
220								2170	3080	4080	7300	8730	11000
240								2330	3300	4360	7800	9360	11800
260									3520	4640	8300	9900	12600
280										4920	8800	10620	13400
300											9300	11250	14200
320											9800	11900	1500
340											10300	12500	15800
360												13100	16600
380													17400
400													18200

Full list of Suppliers of Tee-head bolts with double nib

Germany

BTS Befestigungselemente-Technik Gmbh

Manufacturer of wing nuts AF, wing screws AF, thumb screws, toothed plate connectors, beam clamps, channel, hexagon (domed) cap nuts

France

FIXNER

Fixner is specialized in the export of a wide range of fasteners products, industrial supplies, and tools.

We offer a wide range of bespoke fasteners and screws and bolts according to DIN, ISO, EN, NF, ANSI, ASME and ASTM standards.

Italy

PRESSVIT S.R.L.

PRESSVIT has been on the market since 1967 and specialises in the production of special screws according to drawings. Within the company there is a dedicated machine shop area where modifications to existing equipment are made in order to allow customised machining of products according to customer requirements.

Cold forged special parts are therefore produced not only on time, but also with the utmost flexibility, as each production step is completed completely independently and according to the customer''s instructions.

China

Be-Fasten

BE FASTEN (SHANGHAI) CO LTD was founded in Shanghai in 2019.

We are specialized in importing, exporting and trading stainless steel and carbon steel fasteners, wire rod and steel bars in metal, metal ingots and steel grating products.

Germany

Bergmann GmbH

Manufacturer of cold forged parts: eye bolts, t-head bolts and clevis pins in steel and stainless steel.

Diameter 5–16mm and lengths up to 180mm

Brooks Forgings Limited

Manufacturer of hot forged fasteners, Eyebolts, shackles, holding down blts, U-bolts, hammerhead , T- Bolts and Special Bolts.

Hot forged parts from M10 to M100 and up to 6000 mm length.

Clyde Fasteners Limited

Manufacturer of socket screws and Tee Slot Bolts both metric and imperial

Italy

Colombo Special Fasteners S.r.l.

Manufacturing through cold forging technology of steel products, from Ø6 to Ø33 and lengths proportional to the Ø from I = 10mm to I = 240mm

Tensile grades: 4.6 - 5.6 - 8.8 - 9.8 - 10.9 - 12.9 - B7 - B7M

Poland

France

China

Zhejiang Huantai Fastener Co. Ltd

Manufacturer of hammer head bolts, carriage bolts and rail fastening systems.

China

Zhejiang Xinchun Fastening Piece Co.

Manufacturer specialized in hammer screws and nuts; fixings for aluminium profiles.

The portal for fasteners and fixing elements

Suppliers of Tee-head bolts with double nib

Technical data

Standard DIN 188

Details

BTS Befestigungselemente-Technik Gmbh

FIXNER

PRESSVIT S.R.L.

Be-Fasten

Bergmann GmbH

Brooks Forgings Limited

Clyde Fasteners Limited

Colombo Special Fasteners S.r.l.

Fabryka Elementow Zlacznych FEZ S.A.

Kolb KS Fasteners GmbH

MAZZONETTO GINO s.r.l.

Ningbo Yuema Fastener Co. LTD.

Quanzhou Chang Jin Auto Parts Co.Ltd

Šroubárna Kyjov spol. s r.o

SUPER ENGINEERS

TORNILLERIA AMEZUA S.A.

Vissal Manufacturing

Wa Tai Industrial Co. Ltd.

WERDA GmbH & Co. KG

Yung Ming Fastener

Zhejiang Huantai Fastener Co. Ltd

Zhejiang Xinchun Fastening Piece Co.