Index | Wire | 16mm | Micro | Bullet | Big Bullet | Dinghy | 2.25'' | 3.00'' | Little Hexaratchet | Hexaratchet II+2 | Fiddle | 2.25''/3.00'' Hexa-Cat Bases | Low Profile Triples | Two Speed Mainsheet Systems | Dinghy Vang

Small boat blocks > Line/Wire High Strength Blocks

Wire blocks are lightweight, low friction blocks designed to carry wire halyards and control lines on boats of all sizes.

To minimize friction from twisting or unfair leads, 1.50" and 2.00" wire blocks feature side load balls between the sheave and the sideplate. Hi-load composite bearings carry axial loads. 1.00" wire blocks use low friction thrust washers. Stainless steel sideplates offer superb chafe resistance.

Use for:

Control lines

300 304 308

Flared stainless steel side-plates prevent line chafe and friction when leads are unfair Hi-load composite bearings handle wire and high-strength line Hardkote anodized, Teflon impregnated aluminum protects and extends sheave life

Sideplates can be rotated to allow swaged wire to pass

301 305 309

320

302 306 310

321 322

312 313 314

Part No.	Description	Sheave		Weight		Max wire		Max line		Shackle pin		Safe working load		Breaking strength
		in	mm	oz	g	oz	g	in	mm	in	mm	Ib	kg	Ib	kg
300	Single	1	25	1	28	3/32	2	5/32	4	3/16	5	1000	454	2000	907
301	Cheek ±	1	25	11/4	35	3/32	2	5/32	4	—	—	1000	454	2000	907
302	Thru-deck *	1	25	1	28	3/32	2	5/32	4	—	—	1000	454	2000	907
304	Single	11/2	38	23/4	78	1/8	3	3/16	5	1/4	6	1500	680	3000	1361
305	Cheek ± **	11/2	38	31/4	92	1/8	3	3/16	5	—	—	1500	680	3000	1361
306	Thru-deck *	11/2	38	31/4	92	1/8	3	3/16	5	—	—	1500	680	3000	1361
308	Single	2	51	51/4	149	3/16	5	1/4	6	5/16	8	2000	907	4000	1814
309	Cheek ± ***	2	51	6	170	3/16	5	1/4	6	—	—	2000	907	4000	1814
310	Thru-deck **	2	51	53/4	163	3/16	5	1/4	6	—	—	2000	907	4000	1814
312	Single/becket	1	25	11/4	35	3/32	2	5/32	4	3/16	5	1000	454	2000	907
313	Single/becket	11/2	38	3	85	1/8	3	3/16	5	1/4	6	1500	680	3000	1361
314	Single/becket	2	51	53/4	163	3/16	5	1/4	6	5/16	8	2000	907	4000	1814
320	Ferrule head	11/2	38	3	85	1/8	3	3/16	5	__	—	1500	680	3000	1361
321	Small split backstay plate for 304	—	—	1	28	—	—	—	—	—	—	—	—	—	—
322	Split backstay plate for 308	—	—	11/4	34	—	—	—	—	—	—	—	—	—	—

± - Fasteners included
* - #10 (5 mm) RH fasteners
** - ¹/₄" (6 mm) RH fasteners
*** - ⁵/₁₆" (8 mm) RH fasteners

Index | Wire | 16mm | Micro | Bullet | Big Bullet | Dinghy | 2.25'' | 3.00'' | Little Hexaratchet | Hexaratchet II+2 | Fiddle | 2.25''/3.00'' Hexa-Cat Bases | Low Profile Triples | Two Speed Mainsheet Systems | Dinghy Vang