2025 Ronstan Marine Catalogue - Catalog - Page 8
SPORTS BLOCKS
Series 15 & 20 Utility
6
©Toby Bromwich
SERIES 15
RF13101
RF13101G
RF13101R
SERIES 20
RF666
RF663
RF661
RF615
RF662
RF664
up to
12mm
(1/2")
webbing
RF318
RF498
RF806S
4.8mm (3/16”) pin,
suits RF662
SERIES 15 AP ATTACHMENT OPTIONS
Control lines.
Sheaves: UV stabilised acetal.
Leech lines.
Cheeks & rivets (Series 20): Grade 316 stainless steel.
Shock cord tensioning systems.
Frame/cheeks (RF13101): Impact resistant nylon.
PRODUCT No.
DESCRIPTION
SHEAVE
DIAM.
mm
MAX.
ROPE
mm
M.W.L.
kg
B.L.
kg
WEIGHT
g
SHEAVE
DIAM.
in.
MAX.
ROPE
in.
M.W.L.
lb
B.L.
lb
WEIGHT
oz
Series 15 RF13101
RF13101G
RF13101R
All Purpose
Single block, loop head, black
Single block, loop head, grey
Single block, loop head, red
15
15
15
4
4
4
150
150
150
300
300
300
5
5
5
5/8
5/8
5/8
5/32
5/32
5/32
330
330
330
660
660
660
0.2
0.2
0.2
Series 20 RF661
RF662
RF663
RF664
RF666
All Purpose
Single block, tube rivet head
Double block, tube rivet head
Single block, ferrule eye head
Linked blocks, S20 + S20
Single block, loop head
20
20
20
20
20
5
5
5
3
5
150
300
150
150
150
450
600
450
450
400
10
20
10
20
10
3/4
3/4
3/4
3/4
3/4
3/16
3/16
3/16
1/8
3/16
330
660
330
330
330
990
1320
990
990
880
0.4
0.7
0.4
0.7
0.4
